./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.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_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/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_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/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_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/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 3497bab21b5671016fc7010f5ecca5cf4e8910c607e99fc1f822ef0bd96d6ed2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:50:29,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:50:29,827 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:50:29,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:50:29,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:50:29,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:50:29,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:50:29,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:50:29,867 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:50:29,868 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:50:29,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:50:29,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:50:29,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:50:29,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:50:29,870 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:50:29,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:50:29,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:50:29,870 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:50:29,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:50:29,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:50:29,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:50:29,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:50:29,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:50:29,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:50:29,871 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:50:29,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:50:29,871 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:50:29,871 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:50:29,872 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:50:29,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:50:29,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:50:29,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:50:29,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:50:29,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:50:29,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:50:29,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:50:29,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:50:29,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:50:29,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:50:29,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:50:29,874 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:50:29,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:50:29,874 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:50:29,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:50:29,875 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:50:29,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:50:29,875 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:50:29,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:50:29,875 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_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/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 -> 3497bab21b5671016fc7010f5ecca5cf4e8910c607e99fc1f822ef0bd96d6ed2 [2024-11-24 00:50:30,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:50:30,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:50:30,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:50:30,292 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:50:30,292 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:50:30,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.i [2024-11-24 00:50:33,494 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/data/b9b983a28/f901c4b75cf045d5abb0d55929d082b3/FLAG26baa1b61 [2024-11-24 00:50:33,834 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:50:33,835 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.i [2024-11-24 00:50:33,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/data/b9b983a28/f901c4b75cf045d5abb0d55929d082b3/FLAG26baa1b61 [2024-11-24 00:50:33,866 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/data/b9b983a28/f901c4b75cf045d5abb0d55929d082b3 [2024-11-24 00:50:33,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:50:33,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:50:33,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:50:33,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:50:33,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:50:33,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:50:33" (1/1) ... [2024-11-24 00:50:33,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32cf693a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:33, skipping insertion in model container [2024-11-24 00:50:33,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:50:33" (1/1) ... [2024-11-24 00:50:33,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:50:34,090 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_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.i[919,932] [2024-11-24 00:50:34,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:50:34,204 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:50:34,216 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_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.i[919,932] [2024-11-24 00:50:34,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:50:34,263 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:50:34,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34 WrapperNode [2024-11-24 00:50:34,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:50:34,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:50:34,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:50:34,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:50:34,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,320 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2024-11-24 00:50:34,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:50:34,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:50:34,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:50:34,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:50:34,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,335 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,363 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 00:50:34,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,378 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:50:34,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:50:34,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:50:34,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:50:34,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (1/1) ... [2024-11-24 00:50:34,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:50:34,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:34,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:50:34,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:50:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:50:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:50:34,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:50:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:50:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:50:34,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:50:34,581 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:50:34,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:50:35,114 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 00:50:35,116 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:50:35,127 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:50:35,128 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:50:35,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:50:35 BoogieIcfgContainer [2024-11-24 00:50:35,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:50:35,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:50:35,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:50:35,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:50:35,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:50:33" (1/3) ... [2024-11-24 00:50:35,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebfda2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:50:35, skipping insertion in model container [2024-11-24 00:50:35,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:34" (2/3) ... [2024-11-24 00:50:35,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebfda2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:50:35, skipping insertion in model container [2024-11-24 00:50:35,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:50:35" (3/3) ... [2024-11-24 00:50:35,141 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-45.i [2024-11-24 00:50:35,157 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:50:35,158 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_dependencies_file-45.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:50:35,232 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:50:35,246 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;@2b2a8b88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:50:35,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:50:35,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:50:35,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:50:35,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:35,265 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:35,265 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:35,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash -638402108, now seen corresponding path program 1 times [2024-11-24 00:50:35,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:35,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675983196] [2024-11-24 00:50:35,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:35,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:35,959 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:50:35,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:35,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675983196] [2024-11-24 00:50:35,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675983196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:35,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:35,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:50:35,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847512746] [2024-11-24 00:50:35,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:35,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:35,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:35,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:35,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:35,994 INFO L87 Difference]: Start difference. First operand has 55 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:50:36,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:36,090 INFO L93 Difference]: Finished difference Result 148 states and 263 transitions. [2024-11-24 00:50:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:36,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-24 00:50:36,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:36,101 INFO L225 Difference]: With dead ends: 148 [2024-11-24 00:50:36,102 INFO L226 Difference]: Without dead ends: 96 [2024-11-24 00:50:36,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:36,109 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 66 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:36,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 142 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:50:36,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-24 00:50:36,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2024-11-24 00:50:36,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 59 states have internal predecessors, (73), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 00:50:36,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 137 transitions. [2024-11-24 00:50:36,189 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 137 transitions. Word has length 105 [2024-11-24 00:50:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:36,190 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 137 transitions. [2024-11-24 00:50:36,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:50:36,190 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 137 transitions. [2024-11-24 00:50:36,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:50:36,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:36,198 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:36,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:50:36,199 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:36,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:36,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1865260610, now seen corresponding path program 1 times [2024-11-24 00:50:36,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:36,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221696399] [2024-11-24 00:50:36,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:36,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:54:00,319 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:54:00,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:54:00,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221696399] [2024-11-24 00:54:00,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221696399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:54:00,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:54:00,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:54:00,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670490905] [2024-11-24 00:54:00,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:54:00,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:54:00,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:54:00,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:54:00,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:54:00,323 INFO L87 Difference]: Start difference. First operand 94 states and 137 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:54:05,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:54:05,259 INFO L93 Difference]: Finished difference Result 287 states and 401 transitions. [2024-11-24 00:54:05,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:54:05,260 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-11-24 00:54:05,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:54:05,263 INFO L225 Difference]: With dead ends: 287 [2024-11-24 00:54:05,263 INFO L226 Difference]: Without dead ends: 196 [2024-11-24 00:54:05,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:54:05,266 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 124 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:54:05,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 425 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:54:05,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-24 00:54:05,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 187. [2024-11-24 00:54:05,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 133 states have (on average 1.2406015037593985) internal successors, (165), 138 states have internal predecessors, (165), 46 states have call successors, (46), 7 states have call predecessors, (46), 7 states have return successors, (46), 41 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-24 00:54:05,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 257 transitions. [2024-11-24 00:54:05,329 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 257 transitions. Word has length 106 [2024-11-24 00:54:05,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:54:05,330 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 257 transitions. [2024-11-24 00:54:05,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:54:05,331 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 257 transitions. [2024-11-24 00:54:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:54:05,333 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:54:05,333 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:54:05,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:54:05,336 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:54:05,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:54:05,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1278882996, now seen corresponding path program 1 times [2024-11-24 00:54:05,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:54:05,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104249492] [2024-11-24 00:54:05,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:54:05,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:54:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:54:09,804 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:54:09,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:54:09,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104249492] [2024-11-24 00:54:09,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104249492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:54:09,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:54:09,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:54:09,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119778476] [2024-11-24 00:54:09,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:54:09,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:54:09,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:54:09,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:54:09,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:54:09,807 INFO L87 Difference]: Start difference. First operand 187 states and 257 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:54:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:54:10,191 INFO L93 Difference]: Finished difference Result 473 states and 636 transitions. [2024-11-24 00:54:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:54:10,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-11-24 00:54:10,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:54:10,203 INFO L225 Difference]: With dead ends: 473 [2024-11-24 00:54:10,205 INFO L226 Difference]: Without dead ends: 297 [2024-11-24 00:54:10,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:54:10,208 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 75 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:54:10,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 209 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:54:10,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-24 00:54:10,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 212. [2024-11-24 00:54:10,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 148 states have (on average 1.222972972972973) internal successors, (181), 153 states have internal predecessors, (181), 54 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 00:54:10,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 289 transitions. [2024-11-24 00:54:10,321 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 289 transitions. Word has length 106 [2024-11-24 00:54:10,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:54:10,322 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 289 transitions. [2024-11-24 00:54:10,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:54:10,323 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 289 transitions. [2024-11-24 00:54:10,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:54:10,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:54:10,325 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:54:10,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:54:10,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:54:10,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:54:10,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1241076938, now seen corresponding path program 1 times [2024-11-24 00:54:10,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:54:10,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756627384] [2024-11-24 00:54:10,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:54:10,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:54:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:54:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:54:11,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:54:11,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756627384] [2024-11-24 00:54:11,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756627384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:54:11,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:54:11,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:54:11,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301276696] [2024-11-24 00:54:11,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:54:11,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:54:11,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:54:11,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:54:11,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:54:11,145 INFO L87 Difference]: Start difference. First operand 212 states and 289 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:54:11,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:54:11,448 INFO L93 Difference]: Finished difference Result 498 states and 666 transitions. [2024-11-24 00:54:11,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:54:11,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-11-24 00:54:11,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:54:11,453 INFO L225 Difference]: With dead ends: 498 [2024-11-24 00:54:11,453 INFO L226 Difference]: Without dead ends: 297 [2024-11-24 00:54:11,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:54:11,455 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 74 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:54:11,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 205 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:54:11,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-24 00:54:11,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 207. [2024-11-24 00:54:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 143 states have (on average 1.2097902097902098) internal successors, (173), 148 states have internal predecessors, (173), 54 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 00:54:11,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 281 transitions. [2024-11-24 00:54:11,548 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 281 transitions. Word has length 106 [2024-11-24 00:54:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:54:11,549 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 281 transitions. [2024-11-24 00:54:11,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:54:11,549 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 281 transitions. [2024-11-24 00:54:11,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:54:11,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:54:11,552 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:54:11,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:54:11,552 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:54:11,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:54:11,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1842900672, now seen corresponding path program 1 times [2024-11-24 00:54:11,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:54:11,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727608578] [2024-11-24 00:54:11,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:54:11,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:54:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:24,029 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:57:24,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:24,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727608578] [2024-11-24 00:57:24,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727608578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:24,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:24,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:57:24,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109213526] [2024-11-24 00:57:24,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:24,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:57:24,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:24,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:57:24,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:57:24,032 INFO L87 Difference]: Start difference. First operand 207 states and 281 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:57:30,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:30,981 INFO L93 Difference]: Finished difference Result 457 states and 614 transitions. [2024-11-24 00:57:30,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:57:30,982 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-11-24 00:57:30,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:30,986 INFO L225 Difference]: With dead ends: 457 [2024-11-24 00:57:30,986 INFO L226 Difference]: Without dead ends: 261 [2024-11-24 00:57:30,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:57:30,988 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 121 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:30,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 385 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 00:57:30,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-24 00:57:31,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 254. [2024-11-24 00:57:31,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 180 states have (on average 1.2) internal successors, (216), 187 states have internal predecessors, (216), 60 states have call successors, (60), 13 states have call predecessors, (60), 13 states have return successors, (60), 53 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 00:57:31,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 336 transitions. [2024-11-24 00:57:31,104 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 336 transitions. Word has length 106 [2024-11-24 00:57:31,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:31,105 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 336 transitions. [2024-11-24 00:57:31,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:57:31,105 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 336 transitions. [2024-11-24 00:57:31,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:57:31,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:31,107 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:31,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:57:31,107 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:31,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:31,108 INFO L85 PathProgramCache]: Analyzing trace with hash 692076982, now seen corresponding path program 1 times [2024-11-24 00:57:31,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:31,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003263574] [2024-11-24 00:57:31,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:31,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:57:34,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003263574] [2024-11-24 00:57:34,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003263574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:34,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:34,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:57:34,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709079949] [2024-11-24 00:57:34,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:34,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:57:34,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:34,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:57:34,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:57:34,186 INFO L87 Difference]: Start difference. First operand 254 states and 336 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:57:34,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:34,657 INFO L93 Difference]: Finished difference Result 604 states and 789 transitions. [2024-11-24 00:57:34,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:57:34,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-11-24 00:57:34,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:34,662 INFO L225 Difference]: With dead ends: 604 [2024-11-24 00:57:34,662 INFO L226 Difference]: Without dead ends: 364 [2024-11-24 00:57:34,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:57:34,665 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 81 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:34,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 242 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:57:34,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-24 00:57:34,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 356. [2024-11-24 00:57:34,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 246 states have (on average 1.1626016260162602) internal successors, (286), 257 states have internal predecessors, (286), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 77 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-24 00:57:34,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 462 transitions. [2024-11-24 00:57:34,812 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 462 transitions. Word has length 106 [2024-11-24 00:57:34,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:34,812 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 462 transitions. [2024-11-24 00:57:34,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:57:34,813 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 462 transitions. [2024-11-24 00:57:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:57:34,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:34,815 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:34,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:57:34,815 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:34,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:34,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1827882952, now seen corresponding path program 1 times [2024-11-24 00:57:34,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:34,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213995977] [2024-11-24 00:57:34,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:34,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:35,529 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:57:35,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:35,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213995977] [2024-11-24 00:57:35,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213995977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:35,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:35,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:57:35,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816423397] [2024-11-24 00:57:35,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:35,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:57:35,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:35,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:57:35,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:57:35,531 INFO L87 Difference]: Start difference. First operand 356 states and 462 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:57:36,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:36,063 INFO L93 Difference]: Finished difference Result 708 states and 909 transitions. [2024-11-24 00:57:36,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:57:36,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-11-24 00:57:36,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:36,068 INFO L225 Difference]: With dead ends: 708 [2024-11-24 00:57:36,070 INFO L226 Difference]: Without dead ends: 372 [2024-11-24 00:57:36,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:57:36,073 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 79 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:36,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 277 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:57:36,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-24 00:57:36,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 282. [2024-11-24 00:57:36,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 196 states have (on average 1.1734693877551021) internal successors, (230), 203 states have internal predecessors, (230), 68 states have call successors, (68), 17 states have call predecessors, (68), 17 states have return successors, (68), 61 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-24 00:57:36,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 366 transitions. [2024-11-24 00:57:36,260 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 366 transitions. Word has length 106 [2024-11-24 00:57:36,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:36,264 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 366 transitions. [2024-11-24 00:57:36,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:57:36,264 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 366 transitions. [2024-11-24 00:57:36,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:57:36,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:36,266 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:36,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:57:36,266 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:36,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:36,268 INFO L85 PathProgramCache]: Analyzing trace with hash 754183419, now seen corresponding path program 1 times [2024-11-24 00:57:36,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:36,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757745813] [2024-11-24 00:57:36,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:36,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:12,696 WARN L286 SmtUtils]: Spent 10.25s on a formula simplification. DAG size of input: 372 DAG size of output: 309 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:02:14,601 WARN L286 SmtUtils]: Spent 11.26s on a formula simplification. DAG size of input: 386 DAG size of output: 313 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:02:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:02:14,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:14,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757745813] [2024-11-24 01:02:14,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757745813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:14,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:14,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:02:14,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269382308] [2024-11-24 01:02:14,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:14,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:02:14,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:14,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:02:14,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:02:14,671 INFO L87 Difference]: Start difference. First operand 282 states and 366 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 01:02:20,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:20,794 INFO L93 Difference]: Finished difference Result 294 states and 374 transitions. [2024-11-24 01:02:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:02:20,794 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 107 [2024-11-24 01:02:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:20,797 INFO L225 Difference]: With dead ends: 294 [2024-11-24 01:02:20,797 INFO L226 Difference]: Without dead ends: 292 [2024-11-24 01:02:20,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:02:20,798 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 74 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:20,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 315 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:02:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-24 01:02:20,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 272. [2024-11-24 01:02:20,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 190 states have (on average 1.1736842105263159) internal successors, (223), 195 states have internal predecessors, (223), 64 states have call successors, (64), 17 states have call predecessors, (64), 17 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-24 01:02:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 351 transitions. [2024-11-24 01:02:20,951 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 351 transitions. Word has length 107 [2024-11-24 01:02:20,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:20,952 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 351 transitions. [2024-11-24 01:02:20,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 01:02:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 351 transitions. [2024-11-24 01:02:20,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 01:02:20,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:20,954 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:20,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:02:20,954 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:20,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:20,955 INFO L85 PathProgramCache]: Analyzing trace with hash 167377405, now seen corresponding path program 1 times [2024-11-24 01:02:20,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:20,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737996913] [2024-11-24 01:02:20,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:20,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:09,635 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-24 01:03:09,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-24 01:03:09,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:03:09,637 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.postprocessInterpolant(NestedInterpolantsBuilder.java:472) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.buildPredicates(NestedInterpolantsBuilder.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:292) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:227) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 58 more [2024-11-24 01:03:09,644 INFO L158 Benchmark]: Toolchain (without parser) took 755773.59ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 92.4MB in the beginning and 623.3MB in the end (delta: -530.9MB). Peak memory consumption was 973.6MB. Max. memory is 16.1GB. [2024-11-24 01:03:09,645 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:03:09,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.94ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 78.6MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:03:09,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.02ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:03:09,646 INFO L158 Benchmark]: Boogie Preprocessor took 79.61ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 72.4MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:03:09,646 INFO L158 Benchmark]: RCFGBuilder took 723.50ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 55.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:03:09,646 INFO L158 Benchmark]: TraceAbstraction took 754512.44ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 54.5MB in the beginning and 623.3MB in the end (delta: -568.8MB). Peak memory consumption was 931.6MB. Max. memory is 16.1GB. [2024-11-24 01:03:09,648 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.94ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 78.6MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.02ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 79.61ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 72.4MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 723.50ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 55.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 754512.44ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 54.5MB in the beginning and 623.3MB in the end (delta: -568.8MB). Peak memory consumption was 931.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/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_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/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 3497bab21b5671016fc7010f5ecca5cf4e8910c607e99fc1f822ef0bd96d6ed2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:03:12,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:03:12,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:03:12,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:03:12,690 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:03:12,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:03:12,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:03:12,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:03:12,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:03:12,744 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:03:12,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:03:12,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:03:12,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:03:12,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:03:12,746 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:03:12,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:03:12,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:03:12,747 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:03:12,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:03:12,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:03:12,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:03:12,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:03:12,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:03:12,748 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:03:12,749 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:03:12,749 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:03:12,749 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:03:12,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:03:12,749 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:03:12,749 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:03:12,749 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:03:12,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:03:12,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:03:12,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:03:12,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:03:12,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:03:12,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:03:12,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:03:12,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:03:12,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:03:12,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:03:12,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:03:12,751 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:03:12,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:03:12,752 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:03:12,752 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:03:12,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:03:12,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:03:12,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:03:12,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:03:12,752 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_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/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 -> 3497bab21b5671016fc7010f5ecca5cf4e8910c607e99fc1f822ef0bd96d6ed2 [2024-11-24 01:03:13,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:03:13,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:03:13,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:03:13,144 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:03:13,146 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:03:13,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.i [2024-11-24 01:03:16,389 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/data/b6584313a/5501763b96814d54af71f6fbc58ca3c2/FLAG8a0ecbcaa [2024-11-24 01:03:16,833 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:03:16,835 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.i [2024-11-24 01:03:16,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/data/b6584313a/5501763b96814d54af71f6fbc58ca3c2/FLAG8a0ecbcaa [2024-11-24 01:03:16,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/data/b6584313a/5501763b96814d54af71f6fbc58ca3c2 [2024-11-24 01:03:16,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:03:16,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:03:16,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:03:16,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:03:16,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:03:16,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:03:16" (1/1) ... [2024-11-24 01:03:16,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c72405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:16, skipping insertion in model container [2024-11-24 01:03:16,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:03:16" (1/1) ... [2024-11-24 01:03:16,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:03:17,127 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_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.i[919,932] [2024-11-24 01:03:17,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:03:17,265 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:03:17,286 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_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-45.i[919,932] [2024-11-24 01:03:17,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:03:17,355 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:03:17,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17 WrapperNode [2024-11-24 01:03:17,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:03:17,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:03:17,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:03:17,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:03:17,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,426 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2024-11-24 01:03:17,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:03:17,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:03:17,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:03:17,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:03:17,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,444 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,457 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 01:03:17,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,467 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:03:17,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:03:17,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:03:17,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:03:17,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (1/1) ... [2024-11-24 01:03:17,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:03:17,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:17,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:03:17,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:03:17,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:03:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:03:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:03:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:03:17,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:03:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:03:17,668 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:03:17,670 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:03:18,075 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 01:03:18,075 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:03:18,085 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:03:18,086 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:03:18,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:03:18 BoogieIcfgContainer [2024-11-24 01:03:18,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:03:18,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:03:18,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:03:18,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:03:18,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:03:16" (1/3) ... [2024-11-24 01:03:18,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f4976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:03:18, skipping insertion in model container [2024-11-24 01:03:18,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:17" (2/3) ... [2024-11-24 01:03:18,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f4976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:03:18, skipping insertion in model container [2024-11-24 01:03:18,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:03:18" (3/3) ... [2024-11-24 01:03:18,102 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-45.i [2024-11-24 01:03:18,119 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:03:18,121 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_dependencies_file-45.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:03:18,193 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:03:18,207 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;@377aee98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:03:18,208 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:03:18,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 01:03:18,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 01:03:18,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:18,224 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:18,225 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:18,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:18,231 INFO L85 PathProgramCache]: Analyzing trace with hash -638402108, now seen corresponding path program 1 times [2024-11-24 01:03:18,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:03:18,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189268764] [2024-11-24 01:03:18,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:18,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:18,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:18,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:03:18,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:03:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:18,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:03:18,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:03:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:03:18,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:03:18,596 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:03:18,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189268764] [2024-11-24 01:03:18,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189268764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:18,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:18,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:03:18,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185229658] [2024-11-24 01:03:18,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:18,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:03:18,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:03:18,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:03:18,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:03:18,626 INFO L87 Difference]: Start difference. First operand has 55 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 01:03:18,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:18,776 INFO L93 Difference]: Finished difference Result 148 states and 263 transitions. [2024-11-24 01:03:18,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:03:18,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-24 01:03:18,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:18,793 INFO L225 Difference]: With dead ends: 148 [2024-11-24 01:03:18,793 INFO L226 Difference]: Without dead ends: 96 [2024-11-24 01:03:18,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:03:18,800 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 65 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:18,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 141 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:03:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-24 01:03:18,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2024-11-24 01:03:18,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 59 states have internal predecessors, (72), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 01:03:18,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions. [2024-11-24 01:03:18,873 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 105 [2024-11-24 01:03:18,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:18,874 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions. [2024-11-24 01:03:18,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 01:03:18,875 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions. [2024-11-24 01:03:18,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 01:03:18,878 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:18,878 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:18,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:03:19,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:19,079 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:19,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:19,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1865260610, now seen corresponding path program 1 times [2024-11-24 01:03:19,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:03:19,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781077890] [2024-11-24 01:03:19,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:19,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:19,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:19,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:03:19,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:03:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:19,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:03:19,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:03:20,095 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 167 proven. 36 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-24 01:03:20,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:03:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-24 01:03:20,515 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:03:20,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781077890] [2024-11-24 01:03:20,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781077890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:03:20,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:03:20,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 16 [2024-11-24 01:03:20,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616100416] [2024-11-24 01:03:20,516 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:03:20,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:03:20,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:03:20,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:03:20,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:03:20,519 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (30), 3 states have call predecessors, (30), 6 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-24 01:03:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:21,540 INFO L93 Difference]: Finished difference Result 162 states and 222 transitions. [2024-11-24 01:03:21,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:03:21,549 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (30), 3 states have call predecessors, (30), 6 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 106 [2024-11-24 01:03:21,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:21,551 INFO L225 Difference]: With dead ends: 162 [2024-11-24 01:03:21,551 INFO L226 Difference]: Without dead ends: 71 [2024-11-24 01:03:21,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2024-11-24 01:03:21,554 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 139 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:21,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 165 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:03:21,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-24 01:03:21,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 62. [2024-11-24 01:03:21,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 41 states have internal predecessors, (46), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 01:03:21,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2024-11-24 01:03:21,587 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 106 [2024-11-24 01:03:21,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:21,590 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2024-11-24 01:03:21,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (30), 3 states have call predecessors, (30), 6 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-24 01:03:21,590 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2024-11-24 01:03:21,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 01:03:21,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:21,595 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:21,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:03:21,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:21,795 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:21,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:21,796 INFO L85 PathProgramCache]: Analyzing trace with hash 754183419, now seen corresponding path program 1 times [2024-11-24 01:03:21,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:03:21,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169987722] [2024-11-24 01:03:21,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:21,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:21,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:21,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:03:21,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ae8f8b-14ef-4145-9292-c9b1d7b12820/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:03:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:21,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 01:03:21,933 INFO L279 TraceCheckSpWp]: Computing forward predicates...