./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/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_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c --- 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 01:52:32,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:52:32,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:52:33,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:52:33,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:52:33,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:52:33,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:52:33,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:52:33,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:52:33,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:52:33,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:52:33,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:52:33,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:52:33,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:52:33,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:52:33,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:52:33,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:52:33,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:52:33,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:52:33,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:52:33,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:52:33,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:52:33,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:52:33,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:52:33,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:52:33,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:52:33,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:52:33,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:52:33,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:52:33,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:52:33,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:52:33,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:52:33,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:52:33,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:52:33,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:52:33,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:52:33,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:52:33,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:52:33,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:52:33,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:52:33,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:52:33,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 01:52:33,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:52:33,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:52:33,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:52:33,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:52:33,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 01:52:33,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 01:52:33,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:52:33,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:52:33,135 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:52:33,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:52:33,135 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 01:52:33,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 01:52:33,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 01:52:33,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:52:33,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 01:52:33,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 01:52:33,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 01:52:33,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 01:52:33,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 01:52:33,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:52:33,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 01:52:33,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:52:33,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:52:33,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 01:52:33,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:52:33,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:52:33,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 01:52:33,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 01:52:33,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 01:52:33,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 01:52:33,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 01:52:33,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 01:52:33,142 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 01:52:33,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 01:52:33,142 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_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c [2022-11-23 01:52:33,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:52:33,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:52:33,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:52:33,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:52:33,532 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:52:33,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2022-11-23 01:52:36,665 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:52:36,846 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:52:36,847 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/sv-benchmarks/c/recursive/McCarthy91-2.c [2022-11-23 01:52:36,854 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/data/a32956567/dbde70e01a564140ba40d22a77488ff4/FLAGd9d5a6245 [2022-11-23 01:52:36,872 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/data/a32956567/dbde70e01a564140ba40d22a77488ff4 [2022-11-23 01:52:36,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:52:36,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:52:36,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:52:36,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:52:36,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:52:36,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:52:36" (1/1) ... [2022-11-23 01:52:36,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3656ce25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:36, skipping insertion in model container [2022-11-23 01:52:36,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:52:36" (1/1) ... [2022-11-23 01:52:36,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:52:36,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:52:37,053 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_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/sv-benchmarks/c/recursive/McCarthy91-2.c[749,762] [2022-11-23 01:52:37,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:52:37,073 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:52:37,089 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_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/sv-benchmarks/c/recursive/McCarthy91-2.c[749,762] [2022-11-23 01:52:37,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:52:37,103 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:52:37,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37 WrapperNode [2022-11-23 01:52:37,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:52:37,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:52:37,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:52:37,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:52:37,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,136 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-23 01:52:37,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:52:37,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:52:37,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:52:37,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:52:37,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:52:37,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:52:37,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:52:37,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:52:37,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (1/1) ... [2022-11-23 01:52:37,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:52:37,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:52:37,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 01:52:37,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 01:52:37,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 01:52:37,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:52:37,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:52:37,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 01:52:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2022-11-23 01:52:37,228 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2022-11-23 01:52:37,306 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:52:37,308 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:52:37,486 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:52:37,491 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:52:37,492 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 01:52:37,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:52:37 BoogieIcfgContainer [2022-11-23 01:52:37,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:52:37,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 01:52:37,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 01:52:37,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 01:52:37,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:52:36" (1/3) ... [2022-11-23 01:52:37,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd9727b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:52:37, skipping insertion in model container [2022-11-23 01:52:37,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:52:37" (2/3) ... [2022-11-23 01:52:37,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd9727b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:52:37, skipping insertion in model container [2022-11-23 01:52:37,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:52:37" (3/3) ... [2022-11-23 01:52:37,527 INFO L112 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.c [2022-11-23 01:52:37,547 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 01:52:37,547 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 01:52:37,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 01:52:37,660 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;@710c502c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 01:52:37,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 01:52:37,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 01:52:37,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 01:52:37,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:52:37,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:52:37,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:52:37,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:52:37,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1165457142, now seen corresponding path program 1 times [2022-11-23 01:52:37,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:52:37,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573341354] [2022-11-23 01:52:37,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:52:37,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:52:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:38,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 01:52:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:38,248 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 01:52:38,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:52:38,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573341354] [2022-11-23 01:52:38,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573341354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:52:38,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:52:38,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 01:52:38,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038149785] [2022-11-23 01:52:38,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:52:38,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 01:52:38,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:52:38,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 01:52:38,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 01:52:38,324 INFO L87 Difference]: Start difference. First operand has 18 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 01:52:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:52:38,497 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-23 01:52:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 01:52:38,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-23 01:52:38,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:52:38,507 INFO L225 Difference]: With dead ends: 30 [2022-11-23 01:52:38,508 INFO L226 Difference]: Without dead ends: 17 [2022-11-23 01:52:38,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 01:52:38,514 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 01:52:38,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 43 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 01:52:38,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-23 01:52:38,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-23 01:52:38,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 12 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 01:52:38,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-11-23 01:52:38,554 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 10 [2022-11-23 01:52:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:52:38,555 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-11-23 01:52:38,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 01:52:38,556 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-23 01:52:38,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 01:52:38,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:52:38,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:52:38,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 01:52:38,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:52:38,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:52:38,559 INFO L85 PathProgramCache]: Analyzing trace with hash -480871035, now seen corresponding path program 1 times [2022-11-23 01:52:38,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:52:38,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054269048] [2022-11-23 01:52:38,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:52:38,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:52:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:38,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 01:52:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:38,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 01:52:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:38,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 01:52:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:38,985 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 01:52:38,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:52:38,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054269048] [2022-11-23 01:52:38,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054269048] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 01:52:38,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750987593] [2022-11-23 01:52:38,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:52:38,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 01:52:38,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:52:38,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 01:52:39,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 01:52:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:39,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-23 01:52:39,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:52:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 01:52:39,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 01:52:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 01:52:39,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750987593] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 01:52:39,839 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 01:52:39,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 16 [2022-11-23 01:52:39,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462015874] [2022-11-23 01:52:39,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 01:52:39,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 01:52:39,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:52:39,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 01:52:39,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-11-23 01:52:39,844 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 16 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 01:52:40,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:52:40,032 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2022-11-23 01:52:40,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 01:52:40,034 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 22 [2022-11-23 01:52:40,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:52:40,036 INFO L225 Difference]: With dead ends: 17 [2022-11-23 01:52:40,036 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 01:52:40,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2022-11-23 01:52:40,045 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 01:52:40,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 51 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 01:52:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 01:52:40,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 01:52:40,049 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 01:52:40,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 01:52:40,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-23 01:52:40,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:52:40,050 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 01:52:40,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 01:52:40,050 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 01:52:40,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 01:52:40,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 01:52:40,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 01:52:40,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 01:52:40,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 01:52:40,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 01:52:40,276 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-23 01:52:40,276 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 01:52:40,277 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 01:52:40,277 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2022-11-23 01:52:40,277 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 01:52:40,277 INFO L902 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: true [2022-11-23 01:52:40,278 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-11-23 01:52:40,278 INFO L902 garLoopResultBuilder]: At program point L26(lines 26 34) the Hoare annotation is: true [2022-11-23 01:52:40,278 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 32) no Hoare annotation was computed. [2022-11-23 01:52:40,278 INFO L902 garLoopResultBuilder]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2022-11-23 01:52:40,278 INFO L899 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2022-11-23 01:52:40,279 INFO L895 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: (and (<= f91_~x 100) (= f91_~x |f91_#in~x|)) [2022-11-23 01:52:40,279 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2022-11-23 01:52:40,279 INFO L895 garLoopResultBuilder]: At program point L21-2(line 21) the Hoare annotation is: (and (<= |f91_#t~ret4| 101) (<= f91_~x 100) (= f91_~x |f91_#in~x|)) [2022-11-23 01:52:40,280 INFO L899 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2022-11-23 01:52:40,280 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2022-11-23 01:52:40,280 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2022-11-23 01:52:40,283 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 01:52:40,286 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 01:52:40,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:52:40 BoogieIcfgContainer [2022-11-23 01:52:40,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 01:52:40,294 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 01:52:40,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 01:52:40,295 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 01:52:40,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:52:37" (3/4) ... [2022-11-23 01:52:40,299 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 01:52:40,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2022-11-23 01:52:40,310 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-23 01:52:40,310 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 01:52:40,310 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 01:52:40,311 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 01:52:40,341 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 01:52:40,341 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 01:52:40,342 INFO L158 Benchmark]: Toolchain (without parser) took 3460.54ms. Allocated memory is still 134.2MB. Free memory was 97.4MB in the beginning and 75.0MB in the end (delta: 22.4MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-11-23 01:52:40,342 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:52:40,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.52ms. Allocated memory is still 134.2MB. Free memory was 97.2MB in the beginning and 87.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 01:52:40,343 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.46ms. Allocated memory is still 134.2MB. Free memory was 87.1MB in the beginning and 85.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:52:40,343 INFO L158 Benchmark]: Boogie Preprocessor took 14.94ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 84.8MB in the end (delta: 926.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:52:40,344 INFO L158 Benchmark]: RCFGBuilder took 341.16ms. Allocated memory is still 134.2MB. Free memory was 84.8MB in the beginning and 74.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 01:52:40,344 INFO L158 Benchmark]: TraceAbstraction took 2798.30ms. Allocated memory is still 134.2MB. Free memory was 74.3MB in the beginning and 78.0MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:52:40,344 INFO L158 Benchmark]: Witness Printer took 46.99ms. Allocated memory is still 134.2MB. Free memory was 78.0MB in the beginning and 75.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:52:40,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.52ms. Allocated memory is still 134.2MB. Free memory was 97.2MB in the beginning and 87.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.46ms. Allocated memory is still 134.2MB. Free memory was 87.1MB in the beginning and 85.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.94ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 84.8MB in the end (delta: 926.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 341.16ms. Allocated memory is still 134.2MB. Free memory was 84.8MB in the beginning and 74.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2798.30ms. Allocated memory is still 134.2MB. Free memory was 74.3MB in the beginning and 78.0MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.99ms. Allocated memory is still 134.2MB. Free memory was 78.0MB in the beginning and 75.0MB in the end (delta: 3.0MB). 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: 32]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 21 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 20 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 334 SizeOfPredicates, 5 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 25/36 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 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 01:52:40,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bfcecc6-b360-4149-bdbc-c0a41c3514ea/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