./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-44.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-44.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7c0c1846e9a6fbcad5ffdf5765d9507f8f71f41aa86cc236ddeb4027e19a311 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:25:32,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:25:32,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:25:32,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:25:32,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:25:32,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:25:32,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:25:32,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:25:32,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:25:32,950 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:25:32,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:25:32,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:25:32,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:25:32,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:25:32,952 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:25:32,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:25:32,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:25:32,953 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:25:32,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:25:32,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:25:32,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:25:32,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:25:32,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:25:32,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:25:32,955 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:25:32,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:25:32,955 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:25:32,955 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:25:32,955 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:25:32,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:25:32,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:25:32,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:25:32,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:25:32,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:25:32,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:25:32,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:25:32,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:25:32,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:25:32,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:25:32,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:25:32,957 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:25:32,957 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:25:32,958 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:25:32,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:25:32,958 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:25:32,958 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:25:32,958 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:25:32,958 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:25:32,958 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7c0c1846e9a6fbcad5ffdf5765d9507f8f71f41aa86cc236ddeb4027e19a311 [2024-11-24 01:25:33,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:25:33,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:25:33,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:25:33,284 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:25:33,285 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:25:33,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-44.i [2024-11-24 01:25:36,240 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/data/2fc34da1a/717aaa608d4f4f43a1254eed0438d385/FLAG9fb285b34 [2024-11-24 01:25:36,518 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:25:36,519 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-44.i [2024-11-24 01:25:36,531 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/data/2fc34da1a/717aaa608d4f4f43a1254eed0438d385/FLAG9fb285b34 [2024-11-24 01:25:36,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/data/2fc34da1a/717aaa608d4f4f43a1254eed0438d385 [2024-11-24 01:25:36,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:25:36,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:25:36,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:25:36,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:25:36,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:25:36,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8c6c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36, skipping insertion in model container [2024-11-24 01:25:36,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:25:36,759 WARN L250 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_935635ef-a8f4-4617-8e5f-2b79736c51b6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-44.i[915,928] [2024-11-24 01:25:36,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:25:36,816 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:25:36,827 WARN L250 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_935635ef-a8f4-4617-8e5f-2b79736c51b6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-44.i[915,928] [2024-11-24 01:25:36,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:25:36,873 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:25:36,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36 WrapperNode [2024-11-24 01:25:36,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:25:36,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:25:36,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:25:36,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:25:36,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,914 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2024-11-24 01:25:36,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:25:36,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:25:36,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:25:36,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:25:36,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,951 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:25:36,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,955 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,960 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:25:36,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:25:36,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:25:36,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:25:36,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (1/1) ... [2024-11-24 01:25:36,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:25:37,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:37,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:25:37,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:25:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:25:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:25:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:25:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:25:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:25:37,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:25:37,117 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:25:37,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:25:37,280 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 01:25:37,281 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:25:37,294 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:25:37,294 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:25:37,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:25:37 BoogieIcfgContainer [2024-11-24 01:25:37,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:25:37,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:25:37,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:25:37,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:25:37,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:25:36" (1/3) ... [2024-11-24 01:25:37,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202514a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:25:37, skipping insertion in model container [2024-11-24 01:25:37,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:36" (2/3) ... [2024-11-24 01:25:37,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202514a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:25:37, skipping insertion in model container [2024-11-24 01:25:37,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:25:37" (3/3) ... [2024-11-24 01:25:37,305 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-44.i [2024-11-24 01:25:37,323 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:25:37,326 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-44.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:25:37,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:25:37,422 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@12f19627, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:25:37,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:25:37,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:25:37,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-24 01:25:37,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:37,438 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:37,438 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:37,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:37,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1117978249, now seen corresponding path program 1 times [2024-11-24 01:25:37,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:37,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826893425] [2024-11-24 01:25:37,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:37,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:37,652 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-24 01:25:37,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:37,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826893425] [2024-11-24 01:25:37,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826893425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:37,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533346174] [2024-11-24 01:25:37,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:37,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:37,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:37,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:37,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:25:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:37,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:25:37,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-24 01:25:37,826 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:25:37,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533346174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:37,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:25:37,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:25:37,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318803501] [2024-11-24 01:25:37,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:37,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:25:37,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:37,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:25:37,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:25:37,854 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:25:37,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:37,876 INFO L93 Difference]: Finished difference Result 77 states and 128 transitions. [2024-11-24 01:25:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:25:37,878 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-11-24 01:25:37,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:37,887 INFO L225 Difference]: With dead ends: 77 [2024-11-24 01:25:37,888 INFO L226 Difference]: Without dead ends: 38 [2024-11-24 01:25:37,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:25:37,898 INFO L435 NwaCegarLoop]: 53 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, 53 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 [2024-11-24 01:25:37,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:37,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-24 01:25:37,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-24 01:25:37,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:25:37,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-11-24 01:25:37,940 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 87 [2024-11-24 01:25:37,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:37,941 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-11-24 01:25:37,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:25:37,941 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-11-24 01:25:37,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-24 01:25:37,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:37,944 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:37,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:25:38,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:25:38,145 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:38,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:38,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1001633097, now seen corresponding path program 1 times [2024-11-24 01:25:38,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:38,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742932059] [2024-11-24 01:25:38,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:38,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:25:39,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:39,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742932059] [2024-11-24 01:25:39,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742932059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:39,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:39,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:39,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443088324] [2024-11-24 01:25:39,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:39,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:25:39,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:39,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:25:39,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:25:39,411 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:25:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:39,665 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2024-11-24 01:25:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:25:39,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-11-24 01:25:39,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:39,669 INFO L225 Difference]: With dead ends: 46 [2024-11-24 01:25:39,669 INFO L226 Difference]: Without dead ends: 44 [2024-11-24 01:25:39,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:25:39,671 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 5 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:39,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 186 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:25:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-24 01:25:39,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2024-11-24 01:25:39,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:25:39,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2024-11-24 01:25:39,685 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 87 [2024-11-24 01:25:39,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:39,687 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2024-11-24 01:25:39,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:25:39,687 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2024-11-24 01:25:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 01:25:39,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:39,689 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:39,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:25:39,689 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:39,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:39,689 INFO L85 PathProgramCache]: Analyzing trace with hash -932353188, now seen corresponding path program 1 times [2024-11-24 01:25:39,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:39,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071290100] [2024-11-24 01:25:39,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:39,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:25:39,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:39,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071290100] [2024-11-24 01:25:39,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071290100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:39,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:39,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:25:39,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193308969] [2024-11-24 01:25:39,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:39,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:25:39,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:39,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:25:39,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:39,990 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:25:40,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:40,073 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2024-11-24 01:25:40,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:25:40,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2024-11-24 01:25:40,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:40,076 INFO L225 Difference]: With dead ends: 46 [2024-11-24 01:25:40,076 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:25:40,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:25:40,078 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 13 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:40,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 190 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:40,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:25:40,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:25:40,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:40,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:25:40,082 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2024-11-24 01:25:40,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:40,082 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:25:40,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:25:40,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:25:40,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:25:40,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:25:40,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:25:40,089 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-24 01:25:40,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:25:40,118 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:25:40,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:25:40 BoogieIcfgContainer [2024-11-24 01:25:40,130 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:25:40,130 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:25:40,131 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:25:40,131 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:25:40,132 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:25:37" (3/4) ... [2024-11-24 01:25:40,134 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:25:40,138 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 01:25:40,142 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-24 01:25:40,142 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-24 01:25:40,142 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 01:25:40,142 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:25:40,229 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:25:40,230 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:25:40,230 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:25:40,231 INFO L158 Benchmark]: Toolchain (without parser) took 3670.61ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 67.6MB in the end (delta: 49.4MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2024-11-24 01:25:40,232 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:25:40,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.06ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 105.1MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:25:40,233 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.92ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.8MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:25:40,233 INFO L158 Benchmark]: Boogie Preprocessor took 55.32ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 102.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:25:40,236 INFO L158 Benchmark]: RCFGBuilder took 323.80ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 90.2MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:25:40,237 INFO L158 Benchmark]: TraceAbstraction took 2832.50ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 73.5MB in the end (delta: 16.1MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-11-24 01:25:40,237 INFO L158 Benchmark]: Witness Printer took 99.63ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 67.6MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:25:40,239 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.06ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 105.1MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.92ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.8MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.32ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 102.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 323.80ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 90.2MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2832.50ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 73.5MB in the end (delta: 16.1MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Witness Printer took 99.63ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 67.6MB in the end (delta: 6.0MB). 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 429 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 272 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 157 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 349 NumberOfCodeBlocks, 349 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 452 SizeOfPredicates, 0 NumberOfNonLiveVariables, 200 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1430/1456 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-24 01:25:40,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935635ef-a8f4-4617-8e5f-2b79736c51b6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE