./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.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_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/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_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/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_e147ca1f-09ab-4850-a34f-7896a4e9579c/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 8867ed3eb9bb6f50b3cec69ccd976a6d4dcee2295e8a0520ceede677a47386da --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:08:14,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:08:14,257 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:08:14,263 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:08:14,265 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:08:14,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:08:14,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:08:14,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:08:14,293 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:08:14,293 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:08:14,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:08:14,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:08:14,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:08:14,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:08:14,296 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:08:14,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:08:14,297 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:08:14,298 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:08:14,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:08:14,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:08:14,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:08:14,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:08:14,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:08:14,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:08:14,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:08:14,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:08:14,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:08:14,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:08:14,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:08:14,299 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:08:14,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:08:14,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:08:14,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:08:14,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:08:14,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:08:14,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:08:14,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:08:14,299 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_e147ca1f-09ab-4850-a34f-7896a4e9579c/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 -> 8867ed3eb9bb6f50b3cec69ccd976a6d4dcee2295e8a0520ceede677a47386da [2024-11-23 23:08:14,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:08:14,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:08:14,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:08:14,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:08:14,607 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:08:14,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.i [2024-11-23 23:08:17,596 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/data/9e4b37f05/3709a04ff38b4737b8770e236af00eab/FLAGfd8bd5031 [2024-11-23 23:08:17,890 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:08:17,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.i [2024-11-23 23:08:17,918 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/data/9e4b37f05/3709a04ff38b4737b8770e236af00eab/FLAGfd8bd5031 [2024-11-23 23:08:17,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/data/9e4b37f05/3709a04ff38b4737b8770e236af00eab [2024-11-23 23:08:17,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:08:17,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:08:17,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:08:17,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:08:17,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:08:17,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:08:17" (1/1) ... [2024-11-23 23:08:17,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5e5b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:17, skipping insertion in model container [2024-11-23 23:08:17,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:08:17" (1/1) ... [2024-11-23 23:08:17,992 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:08:18,131 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_e147ca1f-09ab-4850-a34f-7896a4e9579c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.i[913,926] [2024-11-23 23:08:18,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:08:18,190 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:08:18,201 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_e147ca1f-09ab-4850-a34f-7896a4e9579c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.i[913,926] [2024-11-23 23:08:18,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:08:18,246 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:08:18,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18 WrapperNode [2024-11-23 23:08:18,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:08:18,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:08:18,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:08:18,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:08:18,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,314 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2024-11-23 23:08:18,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:08:18,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:08:18,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:08:18,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:08:18,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,337 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,360 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]. [2024-11-23 23:08:18,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,375 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,383 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,388 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:08:18,396 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:08:18,396 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:08:18,396 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:08:18,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (1/1) ... [2024-11-23 23:08:18,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:08:18,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:08:18,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:08:18,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:08:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:08:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:08:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:08:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:08:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:08:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:08:18,564 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:08:18,566 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:08:18,967 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-23 23:08:18,968 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:08:18,983 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:08:18,984 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:08:18,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:08:18 BoogieIcfgContainer [2024-11-23 23:08:18,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:08:18,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:08:18,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:08:18,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:08:18,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:08:17" (1/3) ... [2024-11-23 23:08:18,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65006ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:08:18, skipping insertion in model container [2024-11-23 23:08:18,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:18" (2/3) ... [2024-11-23 23:08:18,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65006ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:08:18, skipping insertion in model container [2024-11-23 23:08:18,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:08:18" (3/3) ... [2024-11-23 23:08:18,995 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-66.i [2024-11-23 23:08:19,011 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:08:19,013 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_normal_file-66.i that has 2 procedures, 61 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:08:19,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:08:19,106 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;@23730b43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:08:19,106 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:08:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 23:08:19,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:08:19,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:19,128 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:19,128 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:19,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:19,135 INFO L85 PathProgramCache]: Analyzing trace with hash 38250463, now seen corresponding path program 1 times [2024-11-23 23:08:19,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:19,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276122083] [2024-11-23 23:08:19,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:19,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:08:26,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:26,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276122083] [2024-11-23 23:08:26,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276122083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:26,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:26,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 23:08:26,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963618967] [2024-11-23 23:08:26,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:26,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:08:26,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:26,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:08:26,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:08:26,373 INFO L87 Difference]: Start difference. First operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:27,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:27,819 INFO L93 Difference]: Finished difference Result 236 states and 392 transitions. [2024-11-23 23:08:27,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:08:27,821 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 23:08:27,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:27,830 INFO L225 Difference]: With dead ends: 236 [2024-11-23 23:08:27,830 INFO L226 Difference]: Without dead ends: 178 [2024-11-23 23:08:27,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:08:27,837 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 187 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:27,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 539 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:08:27,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-23 23:08:27,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 102. [2024-11-23 23:08:27,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 78 states have internal predecessors, (108), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 23:08:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2024-11-23 23:08:27,891 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 152 transitions. Word has length 119 [2024-11-23 23:08:27,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:27,896 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 152 transitions. [2024-11-23 23:08:27,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:27,896 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 152 transitions. [2024-11-23 23:08:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:08:27,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:27,904 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:27,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:08:27,904 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:27,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:27,906 INFO L85 PathProgramCache]: Analyzing trace with hash 40097505, now seen corresponding path program 1 times [2024-11-23 23:08:27,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:27,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272896524] [2024-11-23 23:08:27,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:27,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:34,404 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:08:34,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:34,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272896524] [2024-11-23 23:08:34,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272896524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:34,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:34,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 23:08:34,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915976438] [2024-11-23 23:08:34,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:34,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 23:08:34,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:34,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 23:08:34,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:08:34,408 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:36,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:36,559 INFO L93 Difference]: Finished difference Result 178 states and 242 transitions. [2024-11-23 23:08:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:08:36,561 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 23:08:36,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:36,563 INFO L225 Difference]: With dead ends: 178 [2024-11-23 23:08:36,563 INFO L226 Difference]: Without dead ends: 176 [2024-11-23 23:08:36,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:08:36,568 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 156 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:36,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 581 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:08:36,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-23 23:08:36,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 102. [2024-11-23 23:08:36,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 78 states have internal predecessors, (108), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 23:08:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2024-11-23 23:08:36,605 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 152 transitions. Word has length 119 [2024-11-23 23:08:36,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:36,606 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 152 transitions. [2024-11-23 23:08:36,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 152 transitions. [2024-11-23 23:08:36,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:08:36,612 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:36,612 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:36,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:08:36,613 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:36,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:36,613 INFO L85 PathProgramCache]: Analyzing trace with hash 718308833, now seen corresponding path program 1 times [2024-11-23 23:08:36,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:36,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438538974] [2024-11-23 23:08:36,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:36,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:42,089 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:08:42,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:42,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438538974] [2024-11-23 23:08:42,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438538974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:42,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:42,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 23:08:42,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954948558] [2024-11-23 23:08:42,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:42,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:08:42,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:42,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:08:42,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:08:42,092 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:43,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:43,455 INFO L93 Difference]: Finished difference Result 185 states and 250 transitions. [2024-11-23 23:08:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:08:43,456 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 23:08:43,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:43,458 INFO L225 Difference]: With dead ends: 185 [2024-11-23 23:08:43,458 INFO L226 Difference]: Without dead ends: 183 [2024-11-23 23:08:43,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:08:43,459 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:43,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 648 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:08:43,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-23 23:08:43,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 106. [2024-11-23 23:08:43,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 23:08:43,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 158 transitions. [2024-11-23 23:08:43,478 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 158 transitions. Word has length 119 [2024-11-23 23:08:43,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:43,478 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 158 transitions. [2024-11-23 23:08:43,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:43,479 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 158 transitions. [2024-11-23 23:08:43,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:08:43,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:43,481 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:43,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:08:43,481 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:43,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:43,482 INFO L85 PathProgramCache]: Analyzing trace with hash 720155875, now seen corresponding path program 1 times [2024-11-23 23:08:43,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:43,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416096728] [2024-11-23 23:08:43,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:43,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:49,878 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:08:49,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:49,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416096728] [2024-11-23 23:08:49,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416096728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:49,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:49,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 23:08:49,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674752554] [2024-11-23 23:08:49,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:49,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 23:08:49,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:49,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 23:08:49,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:08:49,881 INFO L87 Difference]: Start difference. First operand 106 states and 158 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:51,489 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2024-11-23 23:08:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:08:51,490 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 23:08:51,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:51,492 INFO L225 Difference]: With dead ends: 183 [2024-11-23 23:08:51,492 INFO L226 Difference]: Without dead ends: 181 [2024-11-23 23:08:51,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:08:51,494 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 157 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:51,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 625 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:08:51,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-23 23:08:51,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 102. [2024-11-23 23:08:51,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 78 states have internal predecessors, (108), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 23:08:51,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2024-11-23 23:08:51,526 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 152 transitions. Word has length 119 [2024-11-23 23:08:51,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:51,527 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 152 transitions. [2024-11-23 23:08:51,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:51,527 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 152 transitions. [2024-11-23 23:08:51,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:08:51,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:51,529 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:51,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:08:51,530 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:51,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:51,530 INFO L85 PathProgramCache]: Analyzing trace with hash 296415901, now seen corresponding path program 1 times [2024-11-23 23:08:51,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:51,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691042497] [2024-11-23 23:08:51,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:51,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:08:51,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:51,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691042497] [2024-11-23 23:08:51,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691042497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:51,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:51,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:08:51,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541988363] [2024-11-23 23:08:51,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:51,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:08:51,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:51,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:08:51,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:51,605 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:51,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:51,667 INFO L93 Difference]: Finished difference Result 281 states and 422 transitions. [2024-11-23 23:08:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:08:51,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 23:08:51,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:51,671 INFO L225 Difference]: With dead ends: 281 [2024-11-23 23:08:51,671 INFO L226 Difference]: Without dead ends: 182 [2024-11-23 23:08:51,672 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 [2024-11-23 23:08:51,673 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 73 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:51,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 222 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:08:51,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-23 23:08:51,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2024-11-23 23:08:51,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 131 states have (on average 1.3282442748091603) internal successors, (174), 133 states have internal predecessors, (174), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-23 23:08:51,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 262 transitions. [2024-11-23 23:08:51,705 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 262 transitions. Word has length 119 [2024-11-23 23:08:51,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:51,705 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 262 transitions. [2024-11-23 23:08:51,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:51,706 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 262 transitions. [2024-11-23 23:08:51,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:08:51,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:51,707 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:51,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:08:51,708 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:51,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:51,709 INFO L85 PathProgramCache]: Analyzing trace with hash -512930725, now seen corresponding path program 1 times [2024-11-23 23:08:51,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:51,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734683250] [2024-11-23 23:08:51,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:51,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:51,820 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:08:51,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:51,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734683250] [2024-11-23 23:08:51,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734683250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:51,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:51,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:08:51,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827147498] [2024-11-23 23:08:51,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:51,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:08:51,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:51,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:08:51,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:08:51,822 INFO L87 Difference]: Start difference. First operand 180 states and 262 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:52,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:52,084 INFO L93 Difference]: Finished difference Result 530 states and 761 transitions. [2024-11-23 23:08:52,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:08:52,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 23:08:52,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:52,088 INFO L225 Difference]: With dead ends: 530 [2024-11-23 23:08:52,088 INFO L226 Difference]: Without dead ends: 353 [2024-11-23 23:08:52,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:08:52,090 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 71 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:52,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 263 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:08:52,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-23 23:08:52,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 308. [2024-11-23 23:08:52,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 215 states have (on average 1.2976744186046512) internal successors, (279), 218 states have internal predecessors, (279), 84 states have call successors, (84), 8 states have call predecessors, (84), 8 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-23 23:08:52,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 447 transitions. [2024-11-23 23:08:52,145 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 447 transitions. Word has length 119 [2024-11-23 23:08:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:52,146 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 447 transitions. [2024-11-23 23:08:52,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:52,146 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 447 transitions. [2024-11-23 23:08:52,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:08:52,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:52,148 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:52,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:08:52,148 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:52,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:52,149 INFO L85 PathProgramCache]: Analyzing trace with hash 167127645, now seen corresponding path program 1 times [2024-11-23 23:08:52,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:52,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749186867] [2024-11-23 23:08:52,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:52,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:54,849 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:08:54,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:54,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749186867] [2024-11-23 23:08:54,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749186867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:54,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:54,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:08:54,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944554780] [2024-11-23 23:08:54,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:54,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:08:54,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:54,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:08:54,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:08:54,851 INFO L87 Difference]: Start difference. First operand 308 states and 447 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:55,904 INFO L93 Difference]: Finished difference Result 454 states and 614 transitions. [2024-11-23 23:08:55,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:08:55,905 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 23:08:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:55,910 INFO L225 Difference]: With dead ends: 454 [2024-11-23 23:08:55,910 INFO L226 Difference]: Without dead ends: 452 [2024-11-23 23:08:55,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:08:55,911 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 286 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:55,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 464 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:08:55,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-23 23:08:55,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 364. [2024-11-23 23:08:55,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 260 states have (on average 1.2769230769230768) internal successors, (332), 265 states have internal predecessors, (332), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:08:55,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 516 transitions. [2024-11-23 23:08:55,984 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 516 transitions. Word has length 119 [2024-11-23 23:08:55,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:55,985 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 516 transitions. [2024-11-23 23:08:55,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:55,986 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 516 transitions. [2024-11-23 23:08:55,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:08:55,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:55,990 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:55,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:08:55,990 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:55,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:55,991 INFO L85 PathProgramCache]: Analyzing trace with hash 168974687, now seen corresponding path program 1 times [2024-11-23 23:08:55,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:55,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730335218] [2024-11-23 23:08:55,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:55,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:00,668 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:09:00,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:00,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730335218] [2024-11-23 23:09:00,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730335218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:00,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:00,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:09:00,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008169733] [2024-11-23 23:09:00,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:00,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:09:00,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:00,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:09:00,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:09:00,670 INFO L87 Difference]: Start difference. First operand 364 states and 516 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:09:02,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:02,224 INFO L93 Difference]: Finished difference Result 452 states and 612 transitions. [2024-11-23 23:09:02,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:09:02,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 23:09:02,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:02,228 INFO L225 Difference]: With dead ends: 452 [2024-11-23 23:09:02,228 INFO L226 Difference]: Without dead ends: 450 [2024-11-23 23:09:02,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:09:02,230 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 238 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:02,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 557 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:09:02,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-23 23:09:02,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 364. [2024-11-23 23:09:02,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 260 states have (on average 1.2769230769230768) internal successors, (332), 265 states have internal predecessors, (332), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:09:02,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 516 transitions. [2024-11-23 23:09:02,309 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 516 transitions. Word has length 119 [2024-11-23 23:09:02,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:02,311 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 516 transitions. [2024-11-23 23:09:02,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:09:02,311 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 516 transitions. [2024-11-23 23:09:02,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:09:02,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:02,313 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:02,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:09:02,314 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:02,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:02,314 INFO L85 PathProgramCache]: Analyzing trace with hash -548555551, now seen corresponding path program 1 times [2024-11-23 23:09:02,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:02,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150592482] [2024-11-23 23:09:02,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:02,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:09:02,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:02,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150592482] [2024-11-23 23:09:02,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150592482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:02,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:02,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:09:02,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636815161] [2024-11-23 23:09:02,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:02,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:09:02,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:02,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:09:02,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:09:02,651 INFO L87 Difference]: Start difference. First operand 364 states and 516 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:09:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:02,958 INFO L93 Difference]: Finished difference Result 689 states and 965 transitions. [2024-11-23 23:09:02,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:09:02,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 119 [2024-11-23 23:09:02,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:02,963 INFO L225 Difference]: With dead ends: 689 [2024-11-23 23:09:02,963 INFO L226 Difference]: Without dead ends: 371 [2024-11-23 23:09:02,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:09:02,966 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 125 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:02,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 151 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:09:02,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-23 23:09:03,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 362. [2024-11-23 23:09:03,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 252 states have (on average 1.2341269841269842) internal successors, (311), 257 states have internal predecessors, (311), 96 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 91 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-23 23:09:03,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 503 transitions. [2024-11-23 23:09:03,034 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 503 transitions. Word has length 119 [2024-11-23 23:09:03,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:03,037 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 503 transitions. [2024-11-23 23:09:03,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:09:03,038 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 503 transitions. [2024-11-23 23:09:03,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 23:09:03,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:03,039 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:03,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:09:03,040 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:03,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:03,040 INFO L85 PathProgramCache]: Analyzing trace with hash 306968243, now seen corresponding path program 1 times [2024-11-23 23:09:03,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:03,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194776506] [2024-11-23 23:09:03,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:03,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:09:03,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493510949] [2024-11-23 23:09:03,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:03,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:09:03,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:09:03,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:09:03,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:09:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:03,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:09:03,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:09:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 401 proven. 93 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-23 23:09:04,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:09:05,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:05,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194776506] [2024-11-23 23:09:05,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:09:05,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493510949] [2024-11-23 23:09:05,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493510949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:09:05,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:09:05,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-23 23:09:05,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385059114] [2024-11-23 23:09:05,815 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:09:05,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:09:05,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:05,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:09:05,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:09:05,816 INFO L87 Difference]: Start difference. First operand 362 states and 503 transitions. Second operand has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 6 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 23:09:06,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:06,944 INFO L93 Difference]: Finished difference Result 985 states and 1261 transitions. [2024-11-23 23:09:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-23 23:09:06,945 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 6 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 120 [2024-11-23 23:09:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:06,950 INFO L225 Difference]: With dead ends: 985 [2024-11-23 23:09:06,950 INFO L226 Difference]: Without dead ends: 667 [2024-11-23 23:09:06,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=973, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 23:09:06,952 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 98 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:06,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 324 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:09:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-23 23:09:07,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 553. [2024-11-23 23:09:07,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 386 states have (on average 1.1580310880829014) internal successors, (447), 397 states have internal predecessors, (447), 124 states have call successors, (124), 42 states have call predecessors, (124), 42 states have return successors, (124), 113 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-23 23:09:07,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 695 transitions. [2024-11-23 23:09:07,087 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 695 transitions. Word has length 120 [2024-11-23 23:09:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:07,087 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 695 transitions. [2024-11-23 23:09:07,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 6 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 23:09:07,088 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 695 transitions. [2024-11-23 23:09:07,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 23:09:07,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:07,089 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:07,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:09:07,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 23:09:07,290 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:07,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:07,290 INFO L85 PathProgramCache]: Analyzing trace with hash 308815285, now seen corresponding path program 1 times [2024-11-23 23:09:07,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:07,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337356073] [2024-11-23 23:09:07,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:07,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:09:07,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223207417] [2024-11-23 23:09:07,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:07,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:09:07,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:09:07,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:09:07,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:09:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:09:07,635 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:09:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:09:07,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:09:07,761 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:09:07,762 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:09:07,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:09:07,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 23:09:07,968 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:08,046 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:09:08,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:09:08 BoogieIcfgContainer [2024-11-23 23:09:08,049 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:09:08,050 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:09:08,050 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:09:08,050 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:09:08,051 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:08:18" (3/4) ... [2024-11-23 23:09:08,054 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 23:09:08,055 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:09:08,056 INFO L158 Benchmark]: Toolchain (without parser) took 50094.39ms. Allocated memory was 117.4MB in the beginning and 587.2MB in the end (delta: 469.8MB). Free memory was 94.6MB in the beginning and 408.6MB in the end (delta: -314.0MB). Peak memory consumption was 153.3MB. Max. memory is 16.1GB. [2024-11-23 23:09:08,056 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:09:08,056 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.74ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 81.0MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:09:08,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.26ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.3MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:09:08,057 INFO L158 Benchmark]: Boogie Preprocessor took 80.43ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 74.1MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:09:08,057 INFO L158 Benchmark]: RCFGBuilder took 588.35ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 55.0MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:09:08,057 INFO L158 Benchmark]: TraceAbstraction took 49062.69ms. Allocated memory was 117.4MB in the beginning and 587.2MB in the end (delta: 469.8MB). Free memory was 54.1MB in the beginning and 408.7MB in the end (delta: -354.6MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. [2024-11-23 23:09:08,058 INFO L158 Benchmark]: Witness Printer took 4.71ms. Allocated memory is still 587.2MB. Free memory was 408.7MB in the beginning and 408.6MB in the end (delta: 123.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:09:08,059 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.74ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 81.0MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.26ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.3MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.43ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 74.1MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 588.35ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 55.0MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 49062.69ms. Allocated memory was 117.4MB in the beginning and 587.2MB in the end (delta: 469.8MB). Free memory was 54.1MB in the beginning and 408.7MB in the end (delta: -354.6MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. * Witness Printer took 4.71ms. Allocated memory is still 587.2MB. Free memory was 408.7MB in the beginning and 408.6MB in the end (delta: 123.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 120. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 50; [L23] signed char var_1_3 = 8; [L24] signed char var_1_4 = 10; [L25] double var_1_5 = 16.5; [L26] signed char var_1_6 = 64; [L27] signed char var_1_7 = 2; [L28] unsigned short int var_1_8 = 256; [L29] unsigned short int var_1_10 = 63583; [L30] unsigned short int var_1_11 = 33789; [L31] unsigned char var_1_12 = 1; [L32] unsigned char var_1_14 = 0; [L33] signed long int var_1_15 = 8; [L34] signed short int var_1_16 = -16; [L35] signed short int var_1_18 = 16; [L36] signed short int var_1_19 = 25; [L37] signed short int var_1_20 = 25; [L38] signed short int var_1_21 = 50; [L39] unsigned char last_1_var_1_12 = 1; VAL [isInitial=0, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=8, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L124] isInitial = 1 [L125] FCALL initially() [L127] CALL updateLastVariables() [L117] last_1_var_1_12 = var_1_12 VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=8, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L127] RET updateLastVariables() [L128] CALL updateVariables() [L88] var_1_3 = __VERIFIER_nondet_char() [L89] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L89] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L90] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L90] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L91] var_1_4 = __VERIFIER_nondet_char() [L92] CALL assume_abort_if_not(var_1_4 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L92] RET assume_abort_if_not(var_1_4 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L93] CALL assume_abort_if_not(var_1_4 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L93] RET assume_abort_if_not(var_1_4 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L94] var_1_6 = __VERIFIER_nondet_char() [L95] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L95] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L96] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L96] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L97] var_1_7 = __VERIFIER_nondet_char() [L98] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L98] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L99] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L99] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L100] var_1_10 = __VERIFIER_nondet_ushort() [L101] CALL assume_abort_if_not(var_1_10 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L101] RET assume_abort_if_not(var_1_10 >= 49150) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L102] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L102] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L103] var_1_11 = __VERIFIER_nondet_ushort() [L104] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L104] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L105] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L105] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L106] var_1_14 = __VERIFIER_nondet_uchar() [L107] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L107] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L108] CALL assume_abort_if_not(var_1_14 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L108] RET assume_abort_if_not(var_1_14 <= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L109] var_1_20 = __VERIFIER_nondet_short() [L110] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L110] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L111] CALL assume_abort_if_not(var_1_20 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L111] RET assume_abort_if_not(var_1_20 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L112] var_1_21 = __VERIFIER_nondet_short() [L113] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L113] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L114] CALL assume_abort_if_not(var_1_21 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L114] RET assume_abort_if_not(var_1_21 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L128] RET updateVariables() [L129] CALL step() [L43] signed char stepLocal_1 = var_1_6; [L44] unsigned char stepLocal_0 = last_1_var_1_12; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_1=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L45] COND FALSE !(-25 == stepLocal_1) [L50] var_1_8 = ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L52] signed char stepLocal_2 = var_1_7; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_2=127, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L53] COND TRUE var_1_8 >= stepLocal_2 [L54] var_1_12 = (! var_1_14) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L56] COND TRUE \read(var_1_12) [L57] var_1_1 = (var_1_3 + var_1_4) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L59] COND TRUE var_1_4 >= (var_1_6 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L60] COND TRUE \read(var_1_12) [L61] var_1_5 = 8.25 VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L64] signed char stepLocal_4 = var_1_6; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_4=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L65] COND TRUE var_1_1 < stepLocal_4 [L66] var_1_18 = (var_1_6 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=-126, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L70] COND TRUE \read(var_1_12) [L71] var_1_19 = ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L73] COND TRUE -64 > (var_1_6 + var_1_19) [L74] var_1_15 = (var_1_11 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L82] signed long int stepLocal_3 = ((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10); VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_3=49279, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L83] COND FALSE !(var_1_19 > stepLocal_3) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L129] RET step() [L130] CALL, EXPR property() [L120-L121] return (((((((var_1_12 ? (var_1_1 == ((signed char) (var_1_3 + var_1_4))) : 1) && ((var_1_4 >= (var_1_6 - var_1_7)) ? (var_1_12 ? (var_1_5 == ((double) 8.25)) : 1) : 1)) && ((-25 == var_1_6) ? ((last_1_var_1_12 && last_1_var_1_12) ? (var_1_8 == ((unsigned short int) ((((((var_1_10 - 10) - 16)) > ((var_1_11 - var_1_7))) ? (((var_1_10 - 10) - 16)) : ((var_1_11 - var_1_7)))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))))))) && ((var_1_8 >= var_1_7) ? (var_1_12 == ((unsigned char) (! var_1_14))) : 1)) && ((-64 > (var_1_6 + var_1_19)) ? (var_1_15 == ((signed long int) (var_1_11 - var_1_7))) : ((! var_1_12) ? (var_1_12 ? (var_1_15 == ((signed long int) 4)) : 1) : 1))) && ((var_1_19 > (((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10))) ? (var_1_16 == ((signed short int) var_1_4)) : 1)) && ((var_1_1 < var_1_6) ? (var_1_18 == ((signed short int) (var_1_6 - var_1_7))) : (var_1_18 == ((signed short int) (((((var_1_6 + var_1_4)) < (var_1_1)) ? ((var_1_6 + var_1_4)) : (var_1_1))))))) && (var_1_12 ? (var_1_19 == ((signed short int) ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.9s, OverallIterations: 11, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1566 SdHoareTripleChecker+Valid, 6.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1561 mSDsluCounter, 4374 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3441 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3681 IncrementalHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 933 mSDtfsCounter, 3681 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=553occurred in iteration=10, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 650 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 34.9s InterpolantComputationTime, 1551 NumberOfCodeBlocks, 1551 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1181 ConstructedInterpolants, 1 QuantifiedInterpolants, 12305 SizeOfPredicates, 7 NumberOfNonLiveVariables, 289 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 6027/6120 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 23:09:08,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/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_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/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_e147ca1f-09ab-4850-a34f-7896a4e9579c/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 8867ed3eb9bb6f50b3cec69ccd976a6d4dcee2295e8a0520ceede677a47386da --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:09:10,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:09:10,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 23:09:11,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:09:11,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:09:11,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:09:11,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:09:11,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:09:11,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:09:11,056 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:09:11,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:09:11,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:09:11,060 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:09:11,060 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:09:11,060 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:09:11,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:09:11,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:09:11,062 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:09:11,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:09:11,063 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:09:11,064 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:09:11,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:09:11,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:09:11,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:09:11,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:09:11,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:09:11,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:09:11,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:09:11,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:09:11,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:09:11,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:09:11,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:09:11,065 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:09:11,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:09:11,065 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 23:09:11,066 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 23:09:11,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:09:11,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:09:11,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:09:11,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:09:11,066 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_e147ca1f-09ab-4850-a34f-7896a4e9579c/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 -> 8867ed3eb9bb6f50b3cec69ccd976a6d4dcee2295e8a0520ceede677a47386da [2024-11-23 23:09:11,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:09:11,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:09:11,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:09:11,498 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:09:11,499 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:09:11,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.i [2024-11-23 23:09:14,559 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/data/620e46a5d/55f64bd8a6f54a79ab3e4ebc9feb018e/FLAG0a22edc4e [2024-11-23 23:09:14,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:09:14,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.i [2024-11-23 23:09:14,800 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/data/620e46a5d/55f64bd8a6f54a79ab3e4ebc9feb018e/FLAG0a22edc4e [2024-11-23 23:09:14,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/data/620e46a5d/55f64bd8a6f54a79ab3e4ebc9feb018e [2024-11-23 23:09:14,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:09:14,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:09:14,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:09:14,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:09:14,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:09:14,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:09:14" (1/1) ... [2024-11-23 23:09:14,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727381c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:14, skipping insertion in model container [2024-11-23 23:09:14,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:09:14" (1/1) ... [2024-11-23 23:09:14,853 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:09:15,032 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_e147ca1f-09ab-4850-a34f-7896a4e9579c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.i[913,926] [2024-11-23 23:09:15,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:09:15,103 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:09:15,116 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_e147ca1f-09ab-4850-a34f-7896a4e9579c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-66.i[913,926] [2024-11-23 23:09:15,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:09:15,167 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:09:15,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15 WrapperNode [2024-11-23 23:09:15,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:09:15,170 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:09:15,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:09:15,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:09:15,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,219 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2024-11-23 23:09:15,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:09:15,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:09:15,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:09:15,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:09:15,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,238 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,258 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]. [2024-11-23 23:09:15,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,283 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,300 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,303 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:09:15,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:09:15,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:09:15,308 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:09:15,309 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (1/1) ... [2024-11-23 23:09:15,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:09:15,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:09:15,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:09:15,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:09:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:09:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 23:09:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:09:15,388 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:09:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:09:15,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:09:15,493 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:09:15,495 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:09:15,994 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-23 23:09:15,997 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:09:16,011 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:09:16,012 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:09:16,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:09:16 BoogieIcfgContainer [2024-11-23 23:09:16,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:09:16,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:09:16,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:09:16,024 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:09:16,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:09:14" (1/3) ... [2024-11-23 23:09:16,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@faa83a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:09:16, skipping insertion in model container [2024-11-23 23:09:16,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15" (2/3) ... [2024-11-23 23:09:16,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@faa83a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:09:16, skipping insertion in model container [2024-11-23 23:09:16,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:09:16" (3/3) ... [2024-11-23 23:09:16,030 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-66.i [2024-11-23 23:09:16,077 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:09:16,080 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_normal_file-66.i that has 2 procedures, 61 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:09:16,161 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:09:16,180 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;@62104637, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:09:16,180 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:09:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 23:09:16,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:09:16,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:16,203 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:16,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:16,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:16,214 INFO L85 PathProgramCache]: Analyzing trace with hash 38250463, now seen corresponding path program 1 times [2024-11-23 23:09:16,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:09:16,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570481388] [2024-11-23 23:09:16,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:16,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:09:16,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:09:16,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:09:16,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 23:09:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:16,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:09:16,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:09:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 406 proven. 78 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-23 23:09:19,454 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:09:24,513 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:09:24,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570481388] [2024-11-23 23:09:24,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570481388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:09:24,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [318485829] [2024-11-23 23:09:24,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:24,514 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:09:24,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:09:24,521 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:09:24,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-23 23:09:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:24,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:09:24,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:09:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 388 proven. 72 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-23 23:09:34,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:09:44,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [318485829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:09:44,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:09:44,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2024-11-23 23:09:44,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620785787] [2024-11-23 23:09:44,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:09:44,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 23:09:44,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:09:44,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 23:09:44,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=650, Unknown=1, NotChecked=0, Total=756 [2024-11-23 23:09:44,062 INFO L87 Difference]: Start difference. First operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 22 states, 22 states have (on average 3.772727272727273) internal successors, (83), 22 states have internal predecessors, (83), 7 states have call successors, (31), 7 states have call predecessors, (31), 12 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-23 23:10:01,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:10:17,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:17,264 INFO L93 Difference]: Finished difference Result 169 states and 274 transitions. [2024-11-23 23:10:17,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 23:10:17,267 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.772727272727273) internal successors, (83), 22 states have internal predecessors, (83), 7 states have call successors, (31), 7 states have call predecessors, (31), 12 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 119 [2024-11-23 23:10:17,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:17,275 INFO L225 Difference]: With dead ends: 169 [2024-11-23 23:10:17,276 INFO L226 Difference]: Without dead ends: 111 [2024-11-23 23:10:17,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 28.8s TimeCoverageRelationStatistics Valid=532, Invalid=2223, Unknown=1, NotChecked=0, Total=2756 [2024-11-23 23:10:17,284 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 206 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:17,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 384 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 21.8s Time] [2024-11-23 23:10:17,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-23 23:10:17,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2024-11-23 23:10:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 69 states have (on average 1.2028985507246377) internal successors, (83), 70 states have internal predecessors, (83), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-23 23:10:17,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2024-11-23 23:10:17,343 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 119 [2024-11-23 23:10:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:17,344 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2024-11-23 23:10:17,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.772727272727273) internal successors, (83), 22 states have internal predecessors, (83), 7 states have call successors, (31), 7 states have call predecessors, (31), 12 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-23 23:10:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2024-11-23 23:10:17,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:10:17,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:17,348 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:17,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-23 23:10:17,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-23 23:10:17,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 23:10:17,749 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:17,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:17,750 INFO L85 PathProgramCache]: Analyzing trace with hash 40097505, now seen corresponding path program 1 times [2024-11-23 23:10:17,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:10:17,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721583880] [2024-11-23 23:10:17,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:17,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:10:17,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:10:17,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:10:17,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e147ca1f-09ab-4850-a34f-7896a4e9579c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-23 23:10:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:17,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-23 23:10:17,955 INFO L279 TraceCheckSpWp]: Computing forward predicates...