./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-61.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB --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 6d70d056c1185c197829b20726e7e8c352a9989b4edbacd554399a50d7e882a4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:44:15,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:44:15,448 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:44:15,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:44:15,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:44:15,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:44:15,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:44:15,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:44:15,498 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:44:15,498 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:44:15,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:44:15,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:44:15,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:44:15,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:44:15,500 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:44:15,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:44:15,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:44:15,501 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:44:15,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:44:15,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:44:15,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:44:15,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:44:15,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:44:15,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:44:15,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:44:15,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:44:15,502 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:44:15,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:44:15,503 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:44:15,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:15,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:15,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:15,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:15,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:44:15,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:15,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:15,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:15,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:15,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:44:15,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:44:15,504 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:44:15,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:44:15,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:44:15,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:44:15,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:44:15,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:44:15,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:44:15,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:44:15,506 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_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 6d70d056c1185c197829b20726e7e8c352a9989b4edbacd554399a50d7e882a4 [2024-11-28 02:44:15,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:44:15,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:44:15,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:44:15,838 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:44:15,838 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:44:15,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-61.i [2024-11-28 02:44:18,898 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/data/bea98d1ab/d23856a7b26a4385b84890a5246d5944/FLAG6531969d3 [2024-11-28 02:44:19,302 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:44:19,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-61.i [2024-11-28 02:44:19,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/data/bea98d1ab/d23856a7b26a4385b84890a5246d5944/FLAG6531969d3 [2024-11-28 02:44:19,340 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/data/bea98d1ab/d23856a7b26a4385b84890a5246d5944 [2024-11-28 02:44:19,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:44:19,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:44:19,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:19,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:44:19,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:44:19,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:19,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188ae9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19, skipping insertion in model container [2024-11-28 02:44:19,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:19,387 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:44:19,548 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_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-61.i[916,929] [2024-11-28 02:44:19,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:19,779 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:44:19,789 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_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-61.i[916,929] [2024-11-28 02:44:19,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:19,953 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:44:19,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19 WrapperNode [2024-11-28 02:44:19,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:19,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:44:19,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:44:19,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:44:19,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:19,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,112 INFO L138 Inliner]: procedures = 26, calls = 122, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 888 [2024-11-28 02:44:20,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:44:20,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:44:20,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:44:20,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:44:20,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,140 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,187 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]. [2024-11-28 02:44:20,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,224 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:44:20,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:44:20,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:44:20,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:44:20,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (1/1) ... [2024-11-28 02:44:20,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:20,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:20,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:44:20,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:44:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:44:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:44:20,353 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:44:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:44:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:44:20,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:44:20,601 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:44:20,604 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:44:22,646 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-28 02:44:22,647 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:44:22,688 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:44:22,689 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:44:22,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:22 BoogieIcfgContainer [2024-11-28 02:44:22,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:44:22,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:44:22,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:44:22,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:44:22,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:44:19" (1/3) ... [2024-11-28 02:44:22,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515c95ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:44:22, skipping insertion in model container [2024-11-28 02:44:22,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:19" (2/3) ... [2024-11-28 02:44:22,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515c95ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:44:22, skipping insertion in model container [2024-11-28 02:44:22,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:22" (3/3) ... [2024-11-28 02:44:22,710 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-61.i [2024-11-28 02:44:22,736 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:44:22,740 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-61.i that has 2 procedures, 374 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:44:22,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:44:22,854 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;@7f02994c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:44:22,854 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:44:22,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 374 states, 262 states have (on average 1.6030534351145038) internal successors, (420), 263 states have internal predecessors, (420), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-28 02:44:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-28 02:44:22,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:22,937 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:22,938 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:22,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:22,946 INFO L85 PathProgramCache]: Analyzing trace with hash 249171580, now seen corresponding path program 1 times [2024-11-28 02:44:22,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:22,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831111160] [2024-11-28 02:44:22,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:22,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 23328 trivial. 0 not checked. [2024-11-28 02:44:24,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:24,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831111160] [2024-11-28 02:44:24,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831111160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:44:24,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319647619] [2024-11-28 02:44:24,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:24,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:24,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:24,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:24,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:44:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:24,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 1560 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:44:24,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 23328 trivial. 0 not checked. [2024-11-28 02:44:24,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:24,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319647619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:24,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:44:24,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:44:24,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984046757] [2024-11-28 02:44:24,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:24,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:44:24,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:24,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:44:24,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:44:24,899 INFO L87 Difference]: Start difference. First operand has 374 states, 262 states have (on average 1.6030534351145038) internal successors, (420), 263 states have internal predecessors, (420), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2024-11-28 02:44:24,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:24,989 INFO L93 Difference]: Finished difference Result 741 states and 1379 transitions. [2024-11-28 02:44:24,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:44:24,992 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) Word has length 698 [2024-11-28 02:44:24,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:25,004 INFO L225 Difference]: With dead ends: 741 [2024-11-28 02:44:25,004 INFO L226 Difference]: Without dead ends: 370 [2024-11-28 02:44:25,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:44:25,014 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:25,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:25,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-28 02:44:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2024-11-28 02:44:25,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 259 states have (on average 1.579150579150579) internal successors, (409), 259 states have internal predecessors, (409), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-28 02:44:25,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 627 transitions. [2024-11-28 02:44:25,126 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 627 transitions. Word has length 698 [2024-11-28 02:44:25,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:25,127 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 627 transitions. [2024-11-28 02:44:25,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2024-11-28 02:44:25,127 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 627 transitions. [2024-11-28 02:44:25,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-28 02:44:25,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:25,160 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:25,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:44:25,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1179b15-ec9f-422e-ad29-a0d08f0f11b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:25,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:25,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:25,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1998128298, now seen corresponding path program 1 times [2024-11-28 02:44:25,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:25,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457261648] [2024-11-28 02:44:25,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:25,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-28 02:44:26,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:26,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457261648] [2024-11-28 02:44:26,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457261648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:26,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:26,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:26,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773817764] [2024-11-28 02:44:26,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:26,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:26,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:26,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:26,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:26,441 INFO L87 Difference]: Start difference. First operand 370 states and 627 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:26,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:26,628 INFO L93 Difference]: Finished difference Result 978 states and 1664 transitions. [2024-11-28 02:44:26,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:26,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 698 [2024-11-28 02:44:26,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:26,643 INFO L225 Difference]: With dead ends: 978 [2024-11-28 02:44:26,644 INFO L226 Difference]: Without dead ends: 611 [2024-11-28 02:44:26,646 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 [2024-11-28 02:44:26,647 INFO L435 NwaCegarLoop]: 617 mSDtfsCounter, 391 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:26,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1215 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:44:26,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-28 02:44:26,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 608. [2024-11-28 02:44:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 460 states have (on average 1.6130434782608696) internal successors, (742), 461 states have internal predecessors, (742), 145 states have call successors, (145), 2 states have call predecessors, (145), 2 states have return successors, (145), 144 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-28 02:44:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 1032 transitions. [2024-11-28 02:44:26,794 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 1032 transitions. Word has length 698 [2024-11-28 02:44:26,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:26,798 INFO L471 AbstractCegarLoop]: Abstraction has 608 states and 1032 transitions. [2024-11-28 02:44:26,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:26,799 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 1032 transitions. [2024-11-28 02:44:26,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-28 02:44:26,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:26,815 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:26,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:44:26,816 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:26,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:26,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1238893598, now seen corresponding path program 1 times [2024-11-28 02:44:26,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:26,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173358409] [2024-11-28 02:44:26,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:26,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-28 02:44:27,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:27,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173358409] [2024-11-28 02:44:27,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173358409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:27,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:27,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:27,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618620553] [2024-11-28 02:44:27,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:27,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:27,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:27,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:27,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:27,570 INFO L87 Difference]: Start difference. First operand 608 states and 1032 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:27,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:27,756 INFO L93 Difference]: Finished difference Result 1817 states and 3088 transitions. [2024-11-28 02:44:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:27,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 699 [2024-11-28 02:44:27,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:27,775 INFO L225 Difference]: With dead ends: 1817 [2024-11-28 02:44:27,775 INFO L226 Difference]: Without dead ends: 1212 [2024-11-28 02:44:27,778 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 [2024-11-28 02:44:27,782 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 577 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:27,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 1577 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:27,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2024-11-28 02:44:28,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1210. [2024-11-28 02:44:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 915 states have (on average 1.6087431693989072) internal successors, (1472), 917 states have internal predecessors, (1472), 290 states have call successors, (290), 4 states have call predecessors, (290), 4 states have return successors, (290), 288 states have call predecessors, (290), 290 states have call successors, (290) [2024-11-28 02:44:28,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 2052 transitions. [2024-11-28 02:44:28,067 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 2052 transitions. Word has length 699 [2024-11-28 02:44:28,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:28,070 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 2052 transitions. [2024-11-28 02:44:28,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:28,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 2052 transitions. [2024-11-28 02:44:28,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-28 02:44:28,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:28,087 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:28,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:44:28,087 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:28,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:28,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1005089700, now seen corresponding path program 1 times [2024-11-28 02:44:28,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:28,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267149984] [2024-11-28 02:44:28,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:28,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-28 02:44:28,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:28,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267149984] [2024-11-28 02:44:28,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267149984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:28,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:28,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:28,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349572394] [2024-11-28 02:44:28,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:28,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:28,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:28,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:28,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:28,645 INFO L87 Difference]: Start difference. First operand 1210 states and 2052 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:28,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:28,886 INFO L93 Difference]: Finished difference Result 3604 states and 6114 transitions. [2024-11-28 02:44:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:28,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 699 [2024-11-28 02:44:28,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:28,911 INFO L225 Difference]: With dead ends: 3604 [2024-11-28 02:44:28,911 INFO L226 Difference]: Without dead ends: 2397 [2024-11-28 02:44:28,917 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 [2024-11-28 02:44:28,919 INFO L435 NwaCegarLoop]: 1088 mSDtfsCounter, 586 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:28,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1708 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:28,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2024-11-28 02:44:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 2395. [2024-11-28 02:44:29,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2395 states, 1806 states have (on average 1.6035437430786268) internal successors, (2896), 1810 states have internal predecessors, (2896), 580 states have call successors, (580), 8 states have call predecessors, (580), 8 states have return successors, (580), 576 states have call predecessors, (580), 580 states have call successors, (580) [2024-11-28 02:44:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2395 states to 2395 states and 4056 transitions. [2024-11-28 02:44:29,293 INFO L78 Accepts]: Start accepts. Automaton has 2395 states and 4056 transitions. Word has length 699 [2024-11-28 02:44:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:29,295 INFO L471 AbstractCegarLoop]: Abstraction has 2395 states and 4056 transitions. [2024-11-28 02:44:29,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:29,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2395 states and 4056 transitions. [2024-11-28 02:44:29,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-28 02:44:29,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:29,305 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:29,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:44:29,306 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:29,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:29,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1145638310, now seen corresponding path program 1 times [2024-11-28 02:44:29,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:29,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062327909] [2024-11-28 02:44:29,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:29,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:30,152 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-28 02:44:30,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:30,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062327909] [2024-11-28 02:44:30,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062327909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:30,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:30,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:44:30,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682588441] [2024-11-28 02:44:30,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:30,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:44:30,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:30,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:44:30,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:44:30,157 INFO L87 Difference]: Start difference. First operand 2395 states and 4056 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:30,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:30,859 INFO L93 Difference]: Finished difference Result 7179 states and 12162 transitions. [2024-11-28 02:44:30,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:30,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 699 [2024-11-28 02:44:30,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:30,903 INFO L225 Difference]: With dead ends: 7179 [2024-11-28 02:44:30,904 INFO L226 Difference]: Without dead ends: 4787 [2024-11-28 02:44:30,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:44:30,916 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 760 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:30,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1210 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:44:30,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4787 states. [2024-11-28 02:44:31,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4787 to 4781. [2024-11-28 02:44:31,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4781 states, 3604 states have (on average 1.6015538290788014) internal successors, (5772), 3612 states have internal predecessors, (5772), 1160 states have call successors, (1160), 16 states have call predecessors, (1160), 16 states have return successors, (1160), 1152 states have call predecessors, (1160), 1160 states have call successors, (1160) [2024-11-28 02:44:31,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4781 states to 4781 states and 8092 transitions. [2024-11-28 02:44:31,956 INFO L78 Accepts]: Start accepts. Automaton has 4781 states and 8092 transitions. Word has length 699 [2024-11-28 02:44:31,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:31,958 INFO L471 AbstractCegarLoop]: Abstraction has 4781 states and 8092 transitions. [2024-11-28 02:44:31,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:31,958 INFO L276 IsEmpty]: Start isEmpty. Operand 4781 states and 8092 transitions. [2024-11-28 02:44:31,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-28 02:44:31,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:31,970 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:31,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:44:31,970 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:31,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:31,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1347462244, now seen corresponding path program 1 times [2024-11-28 02:44:31,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:31,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859365303] [2024-11-28 02:44:31,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:31,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-28 02:44:33,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:33,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859365303] [2024-11-28 02:44:33,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859365303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:33,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:33,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:33,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571519570] [2024-11-28 02:44:33,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:33,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:33,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:33,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:33,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:33,453 INFO L87 Difference]: Start difference. First operand 4781 states and 8092 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:33,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:33,984 INFO L93 Difference]: Finished difference Result 7171 states and 12122 transitions. [2024-11-28 02:44:33,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:33,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 699 [2024-11-28 02:44:33,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:34,026 INFO L225 Difference]: With dead ends: 7171 [2024-11-28 02:44:34,026 INFO L226 Difference]: Without dead ends: 4783 [2024-11-28 02:44:34,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:34,037 INFO L435 NwaCegarLoop]: 630 mSDtfsCounter, 435 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:34,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1243 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:34,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2024-11-28 02:44:34,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4781. [2024-11-28 02:44:34,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4781 states, 3604 states have (on average 1.5948945615982242) internal successors, (5748), 3612 states have internal predecessors, (5748), 1160 states have call successors, (1160), 16 states have call predecessors, (1160), 16 states have return successors, (1160), 1152 states have call predecessors, (1160), 1160 states have call successors, (1160) [2024-11-28 02:44:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4781 states to 4781 states and 8068 transitions. [2024-11-28 02:44:34,973 INFO L78 Accepts]: Start accepts. Automaton has 4781 states and 8068 transitions. Word has length 699 [2024-11-28 02:44:34,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:34,976 INFO L471 AbstractCegarLoop]: Abstraction has 4781 states and 8068 transitions. [2024-11-28 02:44:34,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:34,977 INFO L276 IsEmpty]: Start isEmpty. Operand 4781 states and 8068 transitions. [2024-11-28 02:44:34,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-28 02:44:34,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:34,999 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:35,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:44:35,000 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:35,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:35,001 INFO L85 PathProgramCache]: Analyzing trace with hash 837583396, now seen corresponding path program 1 times [2024-11-28 02:44:35,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:35,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454862900] [2024-11-28 02:44:35,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:35,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:35,570 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-28 02:44:35,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:35,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454862900] [2024-11-28 02:44:35,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454862900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:35,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:35,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:44:35,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903584679] [2024-11-28 02:44:35,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:35,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:44:35,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:35,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:44:35,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:44:35,578 INFO L87 Difference]: Start difference. First operand 4781 states and 8068 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:36,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:36,579 INFO L93 Difference]: Finished difference Result 9945 states and 16798 transitions. [2024-11-28 02:44:36,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:44:36,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 699 [2024-11-28 02:44:36,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:36,627 INFO L225 Difference]: With dead ends: 9945 [2024-11-28 02:44:36,627 INFO L226 Difference]: Without dead ends: 4795 [2024-11-28 02:44:36,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:44:36,649 INFO L435 NwaCegarLoop]: 1097 mSDtfsCounter, 1393 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:36,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 2507 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:44:36,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2024-11-28 02:44:37,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 4781. [2024-11-28 02:44:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4781 states, 3604 states have (on average 1.5937846836847946) internal successors, (5744), 3612 states have internal predecessors, (5744), 1160 states have call successors, (1160), 16 states have call predecessors, (1160), 16 states have return successors, (1160), 1152 states have call predecessors, (1160), 1160 states have call successors, (1160) [2024-11-28 02:44:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4781 states to 4781 states and 8064 transitions. [2024-11-28 02:44:37,595 INFO L78 Accepts]: Start accepts. Automaton has 4781 states and 8064 transitions. Word has length 699 [2024-11-28 02:44:37,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:37,597 INFO L471 AbstractCegarLoop]: Abstraction has 4781 states and 8064 transitions. [2024-11-28 02:44:37,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:37,597 INFO L276 IsEmpty]: Start isEmpty. Operand 4781 states and 8064 transitions. [2024-11-28 02:44:37,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-28 02:44:37,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:37,618 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:37,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:44:37,618 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:37,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:37,620 INFO L85 PathProgramCache]: Analyzing trace with hash -153357566, now seen corresponding path program 1 times [2024-11-28 02:44:37,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:37,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119667655] [2024-11-28 02:44:37,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:37,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-28 02:44:39,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:39,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119667655] [2024-11-28 02:44:39,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119667655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:39,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:39,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:44:39,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171502555] [2024-11-28 02:44:39,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:39,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:44:39,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:39,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:44:39,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:44:39,490 INFO L87 Difference]: Start difference. First operand 4781 states and 8064 transitions. Second operand has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:53,241 INFO L93 Difference]: Finished difference Result 63687 states and 107075 transitions. [2024-11-28 02:44:53,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 02:44:53,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 700 [2024-11-28 02:44:53,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:53,519 INFO L225 Difference]: With dead ends: 63687 [2024-11-28 02:44:53,519 INFO L226 Difference]: Without dead ends: 58909 [2024-11-28 02:44:53,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:44:53,553 INFO L435 NwaCegarLoop]: 919 mSDtfsCounter, 5311 mSDsluCounter, 7699 mSDsCounter, 0 mSdLazyCounter, 4185 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5311 SdHoareTripleChecker+Valid, 8618 SdHoareTripleChecker+Invalid, 4986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 4185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:53,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5311 Valid, 8618 Invalid, 4986 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [801 Valid, 4185 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-28 02:44:53,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58909 states. [2024-11-28 02:44:58,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58909 to 26365. [2024-11-28 02:44:58,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26365 states, 20796 states have (on average 1.6130986728216965) internal successors, (33546), 20868 states have internal predecessors, (33546), 5472 states have call successors, (5472), 96 states have call predecessors, (5472), 96 states have return successors, (5472), 5400 states have call predecessors, (5472), 5472 states have call successors, (5472) [2024-11-28 02:44:58,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26365 states to 26365 states and 44490 transitions. [2024-11-28 02:44:58,344 INFO L78 Accepts]: Start accepts. Automaton has 26365 states and 44490 transitions. Word has length 700 [2024-11-28 02:44:58,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:58,346 INFO L471 AbstractCegarLoop]: Abstraction has 26365 states and 44490 transitions. [2024-11-28 02:44:58,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:44:58,346 INFO L276 IsEmpty]: Start isEmpty. Operand 26365 states and 44490 transitions. [2024-11-28 02:44:58,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-28 02:44:58,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:58,365 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:58,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:44:58,367 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:58,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:58,368 INFO L85 PathProgramCache]: Analyzing trace with hash 270289156, now seen corresponding path program 1 times [2024-11-28 02:44:58,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:58,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65449862] [2024-11-28 02:44:58,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:58,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:59,653 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-28 02:44:59,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:59,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65449862] [2024-11-28 02:44:59,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65449862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:59,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:59,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:44:59,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620320342] [2024-11-28 02:44:59,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:59,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:44:59,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:59,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:44:59,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:44:59,656 INFO L87 Difference]: Start difference. First operand 26365 states and 44490 transitions. Second operand has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:45:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:07,909 INFO L93 Difference]: Finished difference Result 95133 states and 159778 transitions. [2024-11-28 02:45:07,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:45:07,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 700 [2024-11-28 02:45:07,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:08,208 INFO L225 Difference]: With dead ends: 95133 [2024-11-28 02:45:08,208 INFO L226 Difference]: Without dead ends: 68771 [2024-11-28 02:45:08,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:45:08,279 INFO L435 NwaCegarLoop]: 1554 mSDtfsCounter, 3074 mSDsluCounter, 4957 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 697 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3074 SdHoareTripleChecker+Valid, 6511 SdHoareTripleChecker+Invalid, 3686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:08,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3074 Valid, 6511 Invalid, 3686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [697 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 02:45:08,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68771 states. [2024-11-28 02:45:12,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68771 to 18357. [2024-11-28 02:45:12,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18357 states, 14644 states have (on average 1.6205954657197488) internal successors, (23732), 14692 states have internal predecessors, (23732), 3648 states have call successors, (3648), 64 states have call predecessors, (3648), 64 states have return successors, (3648), 3600 states have call predecessors, (3648), 3648 states have call successors, (3648) [2024-11-28 02:45:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18357 states to 18357 states and 31028 transitions. [2024-11-28 02:45:12,291 INFO L78 Accepts]: Start accepts. Automaton has 18357 states and 31028 transitions. Word has length 700 [2024-11-28 02:45:12,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:12,293 INFO L471 AbstractCegarLoop]: Abstraction has 18357 states and 31028 transitions. [2024-11-28 02:45:12,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-28 02:45:12,294 INFO L276 IsEmpty]: Start isEmpty. Operand 18357 states and 31028 transitions. [2024-11-28 02:45:12,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-28 02:45:12,318 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:12,318 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:12,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:45:12,319 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:12,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:12,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1723125252, now seen corresponding path program 1 times [2024-11-28 02:45:12,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:12,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87012265] [2024-11-28 02:45:12,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:12,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:19,256 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-28 02:45:19,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:19,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87012265] [2024-11-28 02:45:19,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87012265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:19,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:19,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 02:45:19,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024589379] [2024-11-28 02:45:19,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:19,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:45:19,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:19,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:45:19,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:45:19,260 INFO L87 Difference]: Start difference. First operand 18357 states and 31028 transitions. Second operand has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2024-11-28 02:45:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:50,738 INFO L93 Difference]: Finished difference Result 194947 states and 325851 transitions. [2024-11-28 02:45:50,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 02:45:50,739 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 700 [2024-11-28 02:45:50,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:51,839 INFO L225 Difference]: With dead ends: 194947 [2024-11-28 02:45:51,839 INFO L226 Difference]: Without dead ends: 176593 [2024-11-28 02:45:51,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=412, Invalid=920, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 02:45:51,962 INFO L435 NwaCegarLoop]: 1851 mSDtfsCounter, 10081 mSDsluCounter, 7047 mSDsCounter, 0 mSdLazyCounter, 5498 mSolverCounterSat, 2853 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10081 SdHoareTripleChecker+Valid, 8898 SdHoareTripleChecker+Invalid, 8351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2853 IncrementalHoareTripleChecker+Valid, 5498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:51,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10081 Valid, 8898 Invalid, 8351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2853 Valid, 5498 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2024-11-28 02:45:52,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176593 states.