./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8 --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 64bit --witnessprinter.graph.data.programhash 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 --- 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-2329fc7 [2022-12-13 21:36:10,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:36:10,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:36:10,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:36:10,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:36:10,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:36:10,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:36:10,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:36:10,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:36:10,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:36:10,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:36:10,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:36:10,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:36:10,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:36:10,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:36:10,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:36:10,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:36:10,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:36:10,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:36:10,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:36:10,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:36:10,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:36:10,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:36:10,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:36:10,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:36:10,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:36:10,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:36:10,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:36:10,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:36:10,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:36:10,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:36:10,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:36:10,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:36:10,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:36:10,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:36:10,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:36:10,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:36:10,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:36:10,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:36:10,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:36:10,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:36:10,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 21:36:10,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:36:10,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:36:10,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:36:10,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:36:10,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:36:10,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:36:10,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:36:10,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:36:10,832 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:36:10,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:36:10,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:36:10,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:36:10,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:36:10,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:36:10,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:36:10,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:36:10,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:36:10,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:36:10,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:36:10,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:36:10,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:36:10,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:36:10,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:36:10,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:36:10,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:36:10,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:36:10,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:36:10,834 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:36:10,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:36:10,835 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:36:10,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:36:10,835 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:36:10,835 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_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 [2022-12-13 21:36:11,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:36:11,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:36:11,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:36:11,032 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:36:11,032 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:36:11,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-12-13 21:36:13,587 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:36:13,705 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:36:13,705 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-12-13 21:36:13,710 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/data/002e15efe/b2650cd5065e4de9a6e327494d9e0287/FLAGf05d2658e [2022-12-13 21:36:13,719 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/data/002e15efe/b2650cd5065e4de9a6e327494d9e0287 [2022-12-13 21:36:13,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:36:13,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:36:13,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:36:13,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:36:13,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:36:13,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe87274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13, skipping insertion in model container [2022-12-13 21:36:13,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:36:13,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:36:13,830 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_62247133-2134-46bd-9e27-8ffcad2521a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-12-13 21:36:13,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:36:13,853 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:36:13,861 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_62247133-2134-46bd-9e27-8ffcad2521a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-12-13 21:36:13,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:36:13,879 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:36:13,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13 WrapperNode [2022-12-13 21:36:13,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:36:13,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:36:13,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:36:13,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:36:13,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,905 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-12-13 21:36:13,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:36:13,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:36:13,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:36:13,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:36:13,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,923 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:36:13,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:36:13,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:36:13,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:36:13,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (1/1) ... [2022-12-13 21:36:13,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:36:13,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:13,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:13,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:36:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:36:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:36:14,037 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:36:14,038 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:36:14,157 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:36:14,163 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:36:14,164 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:36:14,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:14 BoogieIcfgContainer [2022-12-13 21:36:14,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:36:14,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:36:14,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:36:14,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:36:14,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:36:13" (1/3) ... [2022-12-13 21:36:14,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2560cc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:36:14, skipping insertion in model container [2022-12-13 21:36:14,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:13" (2/3) ... [2022-12-13 21:36:14,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2560cc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:36:14, skipping insertion in model container [2022-12-13 21:36:14,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:14" (3/3) ... [2022-12-13 21:36:14,173 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2022-12-13 21:36:14,188 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:36:14,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:36:14,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:36:14,230 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;@2d09d8de, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:36:14,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:36:14,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2022-12-13 21:36:14,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 21:36:14,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:36:14,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:36:14,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:36:14,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:14,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1809708109, now seen corresponding path program 1 times [2022-12-13 21:36:14,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:36:14,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956983698] [2022-12-13 21:36:14,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:14,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:36:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:36:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:36:14,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:36:14,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956983698] [2022-12-13 21:36:14,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956983698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:36:14,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:36:14,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:36:14,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059937324] [2022-12-13 21:36:14,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:36:14,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:36:14,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:36:14,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:36:14,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:36:14,418 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-12-13 21:36:14,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:36:14,429 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2022-12-13 21:36:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:36:14,431 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 21:36:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:36:14,439 INFO L225 Difference]: With dead ends: 20 [2022-12-13 21:36:14,439 INFO L226 Difference]: Without dead ends: 9 [2022-12-13 21:36:14,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:36:14,445 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:36:14,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:36:14,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-13 21:36:14,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-13 21:36:14,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-12-13 21:36:14,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 21:36:14,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-12-13 21:36:14,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:36:14,476 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 21:36:14,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-12-13 21:36:14,477 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 21:36:14,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 21:36:14,477 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:36:14,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:36:14,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:36:14,478 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:36:14,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:14,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1809767691, now seen corresponding path program 1 times [2022-12-13 21:36:14,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:36:14,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707217889] [2022-12-13 21:36:14,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:14,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:36:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:14,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:36:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:14,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:36:14,573 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:36:14,575 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 21:36:14,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:36:14,578 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 21:36:14,581 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:36:14,589 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 21:36:14,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:36:14 BoogieIcfgContainer [2022-12-13 21:36:14,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:36:14,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:36:14,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:36:14,595 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:36:14,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:14" (3/4) ... [2022-12-13 21:36:14,598 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:36:14,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:36:14,598 INFO L158 Benchmark]: Toolchain (without parser) took 876.49ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 89.4MB in the beginning and 110.0MB in the end (delta: -20.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-12-13 21:36:14,599 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 91.8MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:36:14,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.03ms. Allocated memory is still 127.9MB. Free memory was 88.9MB in the beginning and 78.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:36:14,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.16ms. Allocated memory is still 127.9MB. Free memory was 78.5MB in the beginning and 76.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:36:14,600 INFO L158 Benchmark]: Boogie Preprocessor took 20.30ms. Allocated memory is still 127.9MB. Free memory was 76.8MB in the beginning and 75.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:36:14,600 INFO L158 Benchmark]: RCFGBuilder took 239.01ms. Allocated memory is still 127.9MB. Free memory was 75.7MB in the beginning and 62.6MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 21:36:14,601 INFO L158 Benchmark]: TraceAbstraction took 427.07ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 62.1MB in the beginning and 110.0MB in the end (delta: -47.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:36:14,601 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 155.2MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:36:14,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 91.8MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 157.03ms. Allocated memory is still 127.9MB. Free memory was 88.9MB in the beginning and 78.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.16ms. Allocated memory is still 127.9MB. Free memory was 78.5MB in the beginning and 76.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.30ms. Allocated memory is still 127.9MB. Free memory was 76.8MB in the beginning and 75.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 239.01ms. Allocated memory is still 127.9MB. Free memory was 75.7MB in the beginning and 62.6MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 427.07ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 62.1MB in the beginning and 110.0MB in the end (delta: -47.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 155.2MB. Free memory is still 110.0MB. There was no memory consumed. 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 - UnprovableResult [Line: 21]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 49, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_1 var_10 = 1; [L30] const SORT_1 var_13 = 0; [L32] SORT_1 input_2; [L34] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L35] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L38] SORT_1 init_12_arg_1 = var_10; [L39] state_11 = init_12_arg_1 VAL [init_12_arg_1=1, mask_SORT_1=1, msb_SORT_1=1, state_11=1, state_3=5, state_4=5, var_10=1, var_13=0] [L42] input_2 = __VERIFIER_nondet_uchar() [L43] input_2 = input_2 & mask_SORT_1 [L45] SORT_1 var_9_arg_0 = state_3; [L46] SORT_1 var_9_arg_1 = state_4; [L47] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L48] SORT_1 var_15_arg_0 = state_11; [L49] SORT_1 var_15_arg_1 = ~var_9; [L50] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L51] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L52] SORT_1 constr_16_arg_0 = var_15; [L53] CALL assume_abort_if_not(constr_16_arg_0) [L22] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L53] RET assume_abort_if_not(constr_16_arg_0) [L55] SORT_1 bad_17_arg_0 = var_9; [L56] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 21:36:14,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8 --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 64bit --witnessprinter.graph.data.programhash 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 --- 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-2329fc7 [2022-12-13 21:36:16,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:36:16,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:36:16,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:36:16,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:36:16,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:36:16,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:36:16,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:36:16,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:36:16,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:36:16,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:36:16,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:36:16,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:36:16,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:36:16,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:36:16,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:36:16,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:36:16,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:36:16,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:36:16,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:36:16,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:36:16,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:36:16,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:36:16,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:36:16,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:36:16,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:36:16,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:36:16,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:36:16,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:36:16,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:36:16,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:36:16,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:36:16,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:36:16,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:36:16,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:36:16,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:36:16,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:36:16,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:36:16,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:36:16,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:36:16,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:36:16,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 21:36:16,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:36:16,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:36:16,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:36:16,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:36:16,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:36:16,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:36:16,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:36:16,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:36:16,325 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:36:16,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:36:16,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:36:16,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:36:16,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:36:16,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:36:16,326 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:36:16,326 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 21:36:16,326 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 21:36:16,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:36:16,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:36:16,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:36:16,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:36:16,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:36:16,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:36:16,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:36:16,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:36:16,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:36:16,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:36:16,328 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 21:36:16,328 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 21:36:16,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:36:16,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:36:16,328 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:36:16,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:36:16,329 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 21:36:16,329 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:36:16,329 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_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 [2022-12-13 21:36:16,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:36:16,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:36:16,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:36:16,558 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:36:16,558 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:36:16,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-12-13 21:36:19,181 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:36:19,329 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:36:19,330 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-12-13 21:36:19,336 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/data/a4b90c2ed/f3efcdf36430443badd72fbf12b7ac7f/FLAG52c98fb60 [2022-12-13 21:36:19,351 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/data/a4b90c2ed/f3efcdf36430443badd72fbf12b7ac7f [2022-12-13 21:36:19,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:36:19,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:36:19,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:36:19,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:36:19,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:36:19,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5de149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19, skipping insertion in model container [2022-12-13 21:36:19,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:36:19,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:36:19,492 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_62247133-2134-46bd-9e27-8ffcad2521a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-12-13 21:36:19,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:36:19,528 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:36:19,537 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_62247133-2134-46bd-9e27-8ffcad2521a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-12-13 21:36:19,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:36:19,563 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:36:19,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19 WrapperNode [2022-12-13 21:36:19,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:36:19,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:36:19,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:36:19,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:36:19,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,592 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-12-13 21:36:19,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:36:19,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:36:19,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:36:19,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:36:19,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,612 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:36:19,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:36:19,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:36:19,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:36:19,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (1/1) ... [2022-12-13 21:36:19,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:36:19,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:36:19,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:36:19,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:36:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:36:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:36:19,742 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:36:19,744 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:36:19,842 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:36:19,847 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:36:19,847 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:36:19,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:19 BoogieIcfgContainer [2022-12-13 21:36:19,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:36:19,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:36:19,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:36:19,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:36:19,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:36:19" (1/3) ... [2022-12-13 21:36:19,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf8187a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:36:19, skipping insertion in model container [2022-12-13 21:36:19,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:19" (2/3) ... [2022-12-13 21:36:19,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf8187a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:36:19, skipping insertion in model container [2022-12-13 21:36:19,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:19" (3/3) ... [2022-12-13 21:36:19,855 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2022-12-13 21:36:19,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:36:19,871 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:36:19,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:36:19,911 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;@3c5cbca3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:36:19,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:36:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2022-12-13 21:36:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 21:36:19,920 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:36:19,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:36:19,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:36:19,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:19,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1809708109, now seen corresponding path program 1 times [2022-12-13 21:36:19,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:36:19,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190392938] [2022-12-13 21:36:19,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:19,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:36:19,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:36:19,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:36:19,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 21:36:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:36:19,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 21:36:19,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:36:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:36:20,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:36:20,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:36:20,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190392938] [2022-12-13 21:36:20,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190392938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:36:20,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:36:20,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:36:20,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816352093] [2022-12-13 21:36:20,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:36:20,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:36:20,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:36:20,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:36:20,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:36:20,040 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-12-13 21:36:20,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:36:20,050 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2022-12-13 21:36:20,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:36:20,052 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 21:36:20,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:36:20,058 INFO L225 Difference]: With dead ends: 20 [2022-12-13 21:36:20,058 INFO L226 Difference]: Without dead ends: 9 [2022-12-13 21:36:20,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:36:20,062 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:36:20,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:36:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-13 21:36:20,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-13 21:36:20,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-12-13 21:36:20,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 21:36:20,084 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-12-13 21:36:20,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:36:20,084 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 21:36:20,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-12-13 21:36:20,084 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 21:36:20,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 21:36:20,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:36:20,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:36:20,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:36:20,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:36:20,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:36:20,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:20,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1809767691, now seen corresponding path program 1 times [2022-12-13 21:36:20,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:36:20,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002942929] [2022-12-13 21:36:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:20,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:36:20,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:36:20,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:36:20,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 21:36:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:36:20,454 WARN L261 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 21:36:20,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:36:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:36:20,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:36:20,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:36:20,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002942929] [2022-12-13 21:36:20,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002942929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:36:20,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:36:20,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:36:20,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544652743] [2022-12-13 21:36:20,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:36:20,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:36:20,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:36:20,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:36:20,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:36:20,677 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-12-13 21:36:20,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:36:20,826 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-13 21:36:20,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:36:20,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 21:36:20,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:36:20,827 INFO L225 Difference]: With dead ends: 19 [2022-12-13 21:36:20,827 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 21:36:20,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:36:20,829 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:36:20,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 28 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:36:20,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 21:36:20,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2022-12-13 21:36:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2022-12-13 21:36:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-12-13 21:36:20,832 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2022-12-13 21:36:20,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:36:20,832 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-12-13 21:36:20,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-12-13 21:36:20,832 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-12-13 21:36:20,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 21:36:20,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:36:20,833 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 21:36:20,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 21:36:21,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:36:21,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:36:21,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:21,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1841040349, now seen corresponding path program 1 times [2022-12-13 21:36:21,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:36:21,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039319491] [2022-12-13 21:36:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:21,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:36:21,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:36:21,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:36:21,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 21:36:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:21,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:36:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:36:21,246 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 21:36:21,246 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:36:21,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 21:36:21,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 21:36:21,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:36:21,456 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 21:36:21,465 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:36:21,521 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 21:36:21,521 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 21:36:21,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:36:21 BoogieIcfgContainer [2022-12-13 21:36:21,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:36:21,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:36:21,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:36:21,551 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:36:21,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:19" (3/4) ... [2022-12-13 21:36:21,557 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 21:36:21,569 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 21:36:21,569 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 21:36:21,616 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:36:21,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:36:21,617 INFO L158 Benchmark]: Toolchain (without parser) took 2262.35ms. Allocated memory was 58.7MB in the beginning and 94.4MB in the end (delta: 35.7MB). Free memory was 25.3MB in the beginning and 72.0MB in the end (delta: -46.7MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-12-13 21:36:21,617 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:36:21,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.04ms. Allocated memory is still 94.4MB. Free memory was 76.2MB in the beginning and 65.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:36:21,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.19ms. Allocated memory is still 94.4MB. Free memory was 65.7MB in the beginning and 64.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:36:21,618 INFO L158 Benchmark]: Boogie Preprocessor took 22.36ms. Allocated memory is still 94.4MB. Free memory was 64.1MB in the beginning and 62.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:36:21,618 INFO L158 Benchmark]: RCFGBuilder took 232.70ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 51.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:36:21,618 INFO L158 Benchmark]: TraceAbstraction took 1697.30ms. Allocated memory is still 94.4MB. Free memory was 51.1MB in the beginning and 58.3MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:36:21,618 INFO L158 Benchmark]: Witness Printer took 66.36ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 72.0MB in the end (delta: -13.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:36:21,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.04ms. Allocated memory is still 94.4MB. Free memory was 76.2MB in the beginning and 65.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.19ms. Allocated memory is still 94.4MB. Free memory was 65.7MB in the beginning and 64.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.36ms. Allocated memory is still 94.4MB. Free memory was 64.1MB in the beginning and 62.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 232.70ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 51.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1697.30ms. Allocated memory is still 94.4MB. Free memory was 51.1MB in the beginning and 58.3MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 66.36ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 72.0MB in the end (delta: -13.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_1 var_10 = 1; [L30] const SORT_1 var_13 = 0; [L32] SORT_1 input_2; [L34] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L35] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L38] SORT_1 init_12_arg_1 = var_10; [L39] state_11 = init_12_arg_1 VAL [init_12_arg_1=1, mask_SORT_1=1, msb_SORT_1=1, state_11=1, state_3=0, state_4=1, var_10=1, var_13=0] [L42] input_2 = __VERIFIER_nondet_uchar() [L43] input_2 = input_2 & mask_SORT_1 [L45] SORT_1 var_9_arg_0 = state_3; [L46] SORT_1 var_9_arg_1 = state_4; [L47] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L48] SORT_1 var_15_arg_0 = state_11; [L49] SORT_1 var_15_arg_1 = ~var_9; [L50] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L51] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L52] SORT_1 constr_16_arg_0 = var_15; [L53] CALL assume_abort_if_not(constr_16_arg_0) [L22] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L53] RET assume_abort_if_not(constr_16_arg_0) [L55] SORT_1 bad_17_arg_0 = var_9; [L56] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L56] RET __VERIFIER_assert(!(bad_17_arg_0)) [L58] SORT_1 var_5_arg_0 = ~input_2; [L59] var_5_arg_0 = var_5_arg_0 & mask_SORT_1 [L60] SORT_1 var_5_arg_1 = ~state_3; [L61] var_5_arg_1 = var_5_arg_1 & mask_SORT_1 [L62] SORT_1 var_5_arg_2 = state_3; [L63] SORT_1 var_5 = var_5_arg_0 ? var_5_arg_1 : var_5_arg_2; [L64] var_5 = var_5 & mask_SORT_1 [L65] SORT_1 next_7_arg_1 = var_5; [L66] SORT_1 var_6_arg_0 = input_2; [L67] SORT_1 var_6_arg_1 = ~state_4; [L68] var_6_arg_1 = var_6_arg_1 & mask_SORT_1 [L69] SORT_1 var_6_arg_2 = state_4; [L70] SORT_1 var_6 = var_6_arg_0 ? var_6_arg_1 : var_6_arg_2; [L71] var_6 = var_6 & mask_SORT_1 [L72] SORT_1 next_8_arg_1 = var_6; [L73] SORT_1 next_14_arg_1 = var_13; [L75] state_3 = next_7_arg_1 [L76] state_4 = next_8_arg_1 [L77] state_11 = next_14_arg_1 VAL [bad_17_arg_0=0, constr_16_arg_0=1, init_12_arg_1=1, input_2=0, mask_SORT_1=1, msb_SORT_1=1, next_14_arg_1=0, next_7_arg_1=1, next_8_arg_1=1, state_11=0, state_3=1, state_4=1, var_10=1, var_13=0, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_5=1, var_5_arg_0=1, var_5_arg_1=1, var_5_arg_2=0, var_6=1, var_6_arg_0=0, var_6_arg_1=0, var_6_arg_2=1, var_9=0, var_9_arg_0=0, var_9_arg_1=1] [L42] input_2 = __VERIFIER_nondet_uchar() [L43] input_2 = input_2 & mask_SORT_1 [L45] SORT_1 var_9_arg_0 = state_3; [L46] SORT_1 var_9_arg_1 = state_4; [L47] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L48] SORT_1 var_15_arg_0 = state_11; [L49] SORT_1 var_15_arg_1 = ~var_9; [L50] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L51] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L52] SORT_1 constr_16_arg_0 = var_15; [L53] CALL assume_abort_if_not(constr_16_arg_0) [L22] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L53] RET assume_abort_if_not(constr_16_arg_0) [L55] SORT_1 bad_17_arg_0 = var_9; [L56] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 15 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 21:36:21,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62247133-2134-46bd-9e27-8ffcad2521a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE