./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-71.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef425419d893cdf8f2db575b031c5b203ea887f7ed28e92ca0beafffac1fc1ee --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:26:29,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:26:29,870 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:26:29,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:26:29,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:26:29,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:26:29,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:26:29,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:26:29,925 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:26:29,926 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:26:29,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:26:29,926 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:26:29,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:26:29,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:26:29,928 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:26:29,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:26:29,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:26:29,929 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:26:29,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:26:29,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:26:29,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:26:29,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:26:29,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:26:29,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:26:29,930 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:26:29,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:26:29,930 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:26:29,930 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:26:29,931 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:26:29,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:26:29,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:26:29,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:26:29,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:26:29,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:26:29,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:26:29,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:26:29,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:26:29,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:26:29,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:26:29,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:26:29,933 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:26:29,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:26:29,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:26:29,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:26:29,934 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:26:29,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:26:29,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:26:29,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:26:29,934 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_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef425419d893cdf8f2db575b031c5b203ea887f7ed28e92ca0beafffac1fc1ee [2024-11-23 23:26:30,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:26:30,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:26:30,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:26:30,319 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:26:30,319 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:26:30,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-71.i [2024-11-23 23:26:33,356 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/data/798041628/c71ebe14e3854ea08223b043e3b1fa50/FLAG116ae9967 [2024-11-23 23:26:33,703 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:26:33,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-71.i [2024-11-23 23:26:33,717 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/data/798041628/c71ebe14e3854ea08223b043e3b1fa50/FLAG116ae9967 [2024-11-23 23:26:33,743 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/data/798041628/c71ebe14e3854ea08223b043e3b1fa50 [2024-11-23 23:26:33,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:26:33,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:26:33,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:26:33,749 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:26:33,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:26:33,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:26:33" (1/1) ... [2024-11-23 23:26:33,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377a2e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:33, skipping insertion in model container [2024-11-23 23:26:33,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:26:33" (1/1) ... [2024-11-23 23:26:33,810 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:26:34,002 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_feb116dd-95b9-4cf4-b9be-7861db747e8f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-71.i[916,929] [2024-11-23 23:26:34,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:26:34,221 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:26:34,233 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_feb116dd-95b9-4cf4-b9be-7861db747e8f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-71.i[916,929] [2024-11-23 23:26:34,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:26:34,400 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:26:34,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34 WrapperNode [2024-11-23 23:26:34,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:26:34,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:26:34,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:26:34,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:26:34,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,546 INFO L138 Inliner]: procedures = 26, calls = 110, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 757 [2024-11-23 23:26:34,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:26:34,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:26:34,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:26:34,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:26:34,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,578 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,636 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:26:34,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,693 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,695 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:26:34,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:26:34,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:26:34,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:26:34,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (1/1) ... [2024-11-23 23:26:34,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:26:34,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:26:34,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:26:34,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:26:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:26:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:26:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:26:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:26:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:26:34,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:26:35,013 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:26:35,019 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:26:36,875 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-23 23:26:36,876 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:26:36,902 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:26:36,905 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:26:36,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:26:36 BoogieIcfgContainer [2024-11-23 23:26:36,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:26:36,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:26:36,910 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:26:36,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:26:36,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:26:33" (1/3) ... [2024-11-23 23:26:36,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634516c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:26:36, skipping insertion in model container [2024-11-23 23:26:36,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:26:34" (2/3) ... [2024-11-23 23:26:36,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634516c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:26:36, skipping insertion in model container [2024-11-23 23:26:36,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:26:36" (3/3) ... [2024-11-23 23:26:36,922 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-71.i [2024-11-23 23:26:36,941 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:26:36,944 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-71.i that has 2 procedures, 319 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:26:37,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:26:37,056 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;@671d8cc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:26:37,057 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:26:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 219 states have (on average 1.6027397260273972) internal successors, (351), 220 states have internal predecessors, (351), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-23 23:26:37,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-11-23 23:26:37,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:37,116 INFO L218 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:26:37,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:37,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:37,126 INFO L85 PathProgramCache]: Analyzing trace with hash 135835336, now seen corresponding path program 1 times [2024-11-23 23:26:37,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:37,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302807057] [2024-11-23 23:26:37,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:37,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:38,183 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 18432 trivial. 0 not checked. [2024-11-23 23:26:38,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302807057] [2024-11-23 23:26:38,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302807057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:26:38,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221400965] [2024-11-23 23:26:38,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:38,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:26:38,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:26:38,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:26:38,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:26:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:38,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:26:38,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:26:38,884 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 18432 trivial. 0 not checked. [2024-11-23 23:26:38,884 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:26:38,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221400965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:38,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:26:38,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:26:38,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448159069] [2024-11-23 23:26:38,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:38,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:26:38,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:38,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:26:38,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:26:38,929 INFO L87 Difference]: Start difference. First operand has 319 states, 219 states have (on average 1.6027397260273972) internal successors, (351), 220 states have internal predecessors, (351), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 2 states have call successors, (97) [2024-11-23 23:26:39,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:39,048 INFO L93 Difference]: Finished difference Result 631 states and 1181 transitions. [2024-11-23 23:26:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:26:39,055 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 2 states have call successors, (97) Word has length 616 [2024-11-23 23:26:39,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:39,069 INFO L225 Difference]: With dead ends: 631 [2024-11-23 23:26:39,069 INFO L226 Difference]: Without dead ends: 315 [2024-11-23 23:26:39,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:26:39,084 INFO L435 NwaCegarLoop]: 536 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, 536 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 [2024-11-23 23:26:39,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:26:39,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-23 23:26:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2024-11-23 23:26:39,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 216 states have (on average 1.5833333333333333) internal successors, (342), 216 states have internal predecessors, (342), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-23 23:26:39,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 536 transitions. [2024-11-23 23:26:39,221 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 536 transitions. Word has length 616 [2024-11-23 23:26:39,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:39,223 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 536 transitions. [2024-11-23 23:26:39,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 2 states have call successors, (97) [2024-11-23 23:26:39,225 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 536 transitions. [2024-11-23 23:26:39,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-11-23 23:26:39,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:39,246 INFO L218 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:26:39,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:26:39,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb116dd-95b9-4cf4-b9be-7861db747e8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:26:39,451 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:39,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:39,452 INFO L85 PathProgramCache]: Analyzing trace with hash 455536542, now seen corresponding path program 1 times [2024-11-23 23:26:39,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:39,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929830506] [2024-11-23 23:26:39,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:39,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:40,665 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-23 23:26:40,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:40,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929830506] [2024-11-23 23:26:40,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929830506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:40,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:40,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:26:40,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174466916] [2024-11-23 23:26:40,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:40,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:26:40,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:40,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:26:40,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:40,674 INFO L87 Difference]: Start difference. First operand 315 states and 536 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:40,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:40,830 INFO L93 Difference]: Finished difference Result 939 states and 1602 transitions. [2024-11-23 23:26:40,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:26:40,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 616 [2024-11-23 23:26:40,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:40,844 INFO L225 Difference]: With dead ends: 939 [2024-11-23 23:26:40,844 INFO L226 Difference]: Without dead ends: 627 [2024-11-23 23:26:40,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:40,849 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 515 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:40,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1431 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:26:40,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-23 23:26:41,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 625. [2024-11-23 23:26:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 428 states have (on average 1.5864485981308412) internal successors, (679), 428 states have internal predecessors, (679), 194 states have call successors, (194), 2 states have call predecessors, (194), 2 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-23 23:26:41,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1067 transitions. [2024-11-23 23:26:41,070 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1067 transitions. Word has length 616 [2024-11-23 23:26:41,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:41,072 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 1067 transitions. [2024-11-23 23:26:41,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:41,075 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1067 transitions. [2024-11-23 23:26:41,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-11-23 23:26:41,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:41,095 INFO L218 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:26:41,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:26:41,096 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:41,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:41,098 INFO L85 PathProgramCache]: Analyzing trace with hash -769133418, now seen corresponding path program 1 times [2024-11-23 23:26:41,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:41,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108817255] [2024-11-23 23:26:41,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:41,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:41,754 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-23 23:26:41,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:41,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108817255] [2024-11-23 23:26:41,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108817255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:41,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:41,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:26:41,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964631553] [2024-11-23 23:26:41,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:41,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:26:41,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:41,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:26:41,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:41,761 INFO L87 Difference]: Start difference. First operand 625 states and 1067 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:41,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:41,942 INFO L93 Difference]: Finished difference Result 1673 states and 2863 transitions. [2024-11-23 23:26:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:26:41,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 616 [2024-11-23 23:26:41,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:41,963 INFO L225 Difference]: With dead ends: 1673 [2024-11-23 23:26:41,963 INFO L226 Difference]: Without dead ends: 1051 [2024-11-23 23:26:41,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:41,970 INFO L435 NwaCegarLoop]: 658 mSDtfsCounter, 336 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:41,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1173 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:26:41,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2024-11-23 23:26:42,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 1047. [2024-11-23 23:26:42,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 748 states have (on average 1.606951871657754) internal successors, (1202), 750 states have internal predecessors, (1202), 294 states have call successors, (294), 4 states have call predecessors, (294), 4 states have return successors, (294), 292 states have call predecessors, (294), 294 states have call successors, (294) [2024-11-23 23:26:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1790 transitions. [2024-11-23 23:26:42,231 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1790 transitions. Word has length 616 [2024-11-23 23:26:42,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:42,233 INFO L471 AbstractCegarLoop]: Abstraction has 1047 states and 1790 transitions. [2024-11-23 23:26:42,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1790 transitions. [2024-11-23 23:26:42,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-11-23 23:26:42,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:42,247 INFO L218 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:26:42,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:26:42,247 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:42,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:42,248 INFO L85 PathProgramCache]: Analyzing trace with hash -374766632, now seen corresponding path program 1 times [2024-11-23 23:26:42,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:42,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965981143] [2024-11-23 23:26:42,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:42,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-23 23:26:42,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:42,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965981143] [2024-11-23 23:26:42,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965981143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:42,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:42,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:26:42,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047080314] [2024-11-23 23:26:42,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:42,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:26:42,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:42,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:26:42,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:42,736 INFO L87 Difference]: Start difference. First operand 1047 states and 1790 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:42,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:42,957 INFO L93 Difference]: Finished difference Result 3135 states and 5364 transitions. [2024-11-23 23:26:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:26:42,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 616 [2024-11-23 23:26:42,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:42,978 INFO L225 Difference]: With dead ends: 3135 [2024-11-23 23:26:42,979 INFO L226 Difference]: Without dead ends: 2091 [2024-11-23 23:26:42,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:42,987 INFO L435 NwaCegarLoop]: 972 mSDtfsCounter, 508 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:42,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 1499 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:26:42,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2024-11-23 23:26:43,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2089. [2024-11-23 23:26:43,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 1492 states have (on average 1.6018766756032172) internal successors, (2390), 1496 states have internal predecessors, (2390), 588 states have call successors, (588), 8 states have call predecessors, (588), 8 states have return successors, (588), 584 states have call predecessors, (588), 588 states have call successors, (588) [2024-11-23 23:26:43,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 3566 transitions. [2024-11-23 23:26:43,394 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 3566 transitions. Word has length 616 [2024-11-23 23:26:43,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:43,396 INFO L471 AbstractCegarLoop]: Abstraction has 2089 states and 3566 transitions. [2024-11-23 23:26:43,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:43,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 3566 transitions. [2024-11-23 23:26:43,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-11-23 23:26:43,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:43,408 INFO L218 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:26:43,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:26:43,408 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:43,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:43,409 INFO L85 PathProgramCache]: Analyzing trace with hash -390285350, now seen corresponding path program 1 times [2024-11-23 23:26:43,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:43,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547781448] [2024-11-23 23:26:43,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:43,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-23 23:26:43,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:43,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547781448] [2024-11-23 23:26:43,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547781448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:43,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:43,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:26:43,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024130472] [2024-11-23 23:26:43,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:43,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:26:43,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:43,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:26:43,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:43,868 INFO L87 Difference]: Start difference. First operand 2089 states and 3566 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:44,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:44,273 INFO L93 Difference]: Finished difference Result 6261 states and 10692 transitions. [2024-11-23 23:26:44,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:26:44,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 616 [2024-11-23 23:26:44,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:44,304 INFO L225 Difference]: With dead ends: 6261 [2024-11-23 23:26:44,305 INFO L226 Difference]: Without dead ends: 4175 [2024-11-23 23:26:44,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:44,314 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 516 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:44,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1056 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:26:44,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4175 states. [2024-11-23 23:26:44,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4175 to 4173. [2024-11-23 23:26:44,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4173 states, 2980 states have (on average 1.5919463087248322) internal successors, (4744), 2988 states have internal predecessors, (4744), 1176 states have call successors, (1176), 16 states have call predecessors, (1176), 16 states have return successors, (1176), 1168 states have call predecessors, (1176), 1176 states have call successors, (1176) [2024-11-23 23:26:44,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4173 states to 4173 states and 7096 transitions. [2024-11-23 23:26:44,990 INFO L78 Accepts]: Start accepts. Automaton has 4173 states and 7096 transitions. Word has length 616 [2024-11-23 23:26:44,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:44,993 INFO L471 AbstractCegarLoop]: Abstraction has 4173 states and 7096 transitions. [2024-11-23 23:26:44,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4173 states and 7096 transitions. [2024-11-23 23:26:45,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-11-23 23:26:45,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:45,003 INFO L218 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:26:45,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:26:45,004 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:45,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:45,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1981453912, now seen corresponding path program 1 times [2024-11-23 23:26:45,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:45,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819084072] [2024-11-23 23:26:45,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:45,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-23 23:26:45,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:45,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819084072] [2024-11-23 23:26:45,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819084072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:45,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:45,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:26:45,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038310537] [2024-11-23 23:26:45,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:45,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:26:45,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:45,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:26:45,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:45,552 INFO L87 Difference]: Start difference. First operand 4173 states and 7096 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:46,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:46,358 INFO L93 Difference]: Finished difference Result 12473 states and 21214 transitions. [2024-11-23 23:26:46,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:26:46,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 616 [2024-11-23 23:26:46,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:46,424 INFO L225 Difference]: With dead ends: 12473 [2024-11-23 23:26:46,424 INFO L226 Difference]: Without dead ends: 8303 [2024-11-23 23:26:46,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:46,444 INFO L435 NwaCegarLoop]: 902 mSDtfsCounter, 502 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:46,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1422 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:26:46,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8303 states. [2024-11-23 23:26:47,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8303 to 8301. [2024-11-23 23:26:47,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8301 states, 5916 states have (on average 1.5835023664638268) internal successors, (9368), 5932 states have internal predecessors, (9368), 2352 states have call successors, (2352), 32 states have call predecessors, (2352), 32 states have return successors, (2352), 2336 states have call predecessors, (2352), 2352 states have call successors, (2352) [2024-11-23 23:26:47,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8301 states to 8301 states and 14072 transitions. [2024-11-23 23:26:47,883 INFO L78 Accepts]: Start accepts. Automaton has 8301 states and 14072 transitions. Word has length 616 [2024-11-23 23:26:47,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:47,885 INFO L471 AbstractCegarLoop]: Abstraction has 8301 states and 14072 transitions. [2024-11-23 23:26:47,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:47,885 INFO L276 IsEmpty]: Start isEmpty. Operand 8301 states and 14072 transitions. [2024-11-23 23:26:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-11-23 23:26:47,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:47,902 INFO L218 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:26:47,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:26:47,903 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:47,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:47,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2043493526, now seen corresponding path program 1 times [2024-11-23 23:26:47,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:47,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840225086] [2024-11-23 23:26:47,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:47,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:48,374 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-23 23:26:48,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:48,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840225086] [2024-11-23 23:26:48,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840225086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:48,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:48,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:26:48,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978872973] [2024-11-23 23:26:48,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:48,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:26:48,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:48,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:26:48,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:48,379 INFO L87 Difference]: Start difference. First operand 8301 states and 14072 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:49,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:49,686 INFO L93 Difference]: Finished difference Result 24897 states and 42210 transitions. [2024-11-23 23:26:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:26:49,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 616 [2024-11-23 23:26:49,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:49,795 INFO L225 Difference]: With dead ends: 24897 [2024-11-23 23:26:49,795 INFO L226 Difference]: Without dead ends: 16599 [2024-11-23 23:26:49,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:49,830 INFO L435 NwaCegarLoop]: 1025 mSDtfsCounter, 522 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:49,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1555 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:26:49,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16599 states. [2024-11-23 23:26:52,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16599 to 16597. [2024-11-23 23:26:52,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16597 states, 11828 states have (on average 1.5782888062225229) internal successors, (18668), 11860 states have internal predecessors, (18668), 4704 states have call successors, (4704), 64 states have call predecessors, (4704), 64 states have return successors, (4704), 4672 states have call predecessors, (4704), 4704 states have call successors, (4704) [2024-11-23 23:26:52,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16597 states to 16597 states and 28076 transitions. [2024-11-23 23:26:52,400 INFO L78 Accepts]: Start accepts. Automaton has 16597 states and 28076 transitions. Word has length 616 [2024-11-23 23:26:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:52,403 INFO L471 AbstractCegarLoop]: Abstraction has 16597 states and 28076 transitions. [2024-11-23 23:26:52,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:26:52,404 INFO L276 IsEmpty]: Start isEmpty. Operand 16597 states and 28076 transitions. [2024-11-23 23:26:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-11-23 23:26:52,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:52,423 INFO L218 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:26:52,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:26:52,424 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:52,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:52,425 INFO L85 PathProgramCache]: Analyzing trace with hash 763629848, now seen corresponding path program 1 times [2024-11-23 23:26:52,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:52,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278773542] [2024-11-23 23:26:52,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:52,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:53,437 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-23 23:26:53,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:53,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278773542] [2024-11-23 23:26:53,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278773542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:53,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:53,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:26:53,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090979492] [2024-11-23 23:26:53,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:53,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:26:53,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:53,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:26:53,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:26:53,441 INFO L87 Difference]: Start difference. First operand 16597 states and 28076 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:27:02,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:02,049 INFO L93 Difference]: Finished difference Result 122949 states and 206404 transitions. [2024-11-23 23:27:02,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:27:02,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 616 [2024-11-23 23:27:02,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:02,659 INFO L225 Difference]: With dead ends: 122949 [2024-11-23 23:27:02,659 INFO L226 Difference]: Without dead ends: 106355 [2024-11-23 23:27:02,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:27:02,756 INFO L435 NwaCegarLoop]: 1313 mSDtfsCounter, 1707 mSDsluCounter, 5350 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 6663 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:02,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 6663 Invalid, 1201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [205 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 23:27:02,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106355 states. [2024-11-23 23:27:12,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106355 to 106213. [2024-11-23 23:27:12,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106213 states, 73572 states have (on average 1.5443375197085847) internal successors, (113620), 73956 states have internal predecessors, (113620), 32128 states have call successors, (32128), 512 states have call predecessors, (32128), 512 states have return successors, (32128), 31744 states have call predecessors, (32128), 32128 states have call successors, (32128) [2024-11-23 23:27:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106213 states to 106213 states and 177876 transitions. [2024-11-23 23:27:13,534 INFO L78 Accepts]: Start accepts. Automaton has 106213 states and 177876 transitions. Word has length 616 [2024-11-23 23:27:13,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:13,536 INFO L471 AbstractCegarLoop]: Abstraction has 106213 states and 177876 transitions. [2024-11-23 23:27:13,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:27:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 106213 states and 177876 transitions. [2024-11-23 23:27:13,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2024-11-23 23:27:13,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:13,578 INFO L218 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:13,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:27:13,582 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:13,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:13,583 INFO L85 PathProgramCache]: Analyzing trace with hash 732056095, now seen corresponding path program 1 times [2024-11-23 23:27:13,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:13,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879548626] [2024-11-23 23:27:13,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:13,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:14,325 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-23 23:27:14,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:14,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879548626] [2024-11-23 23:27:14,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879548626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:14,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:14,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:27:14,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071916849] [2024-11-23 23:27:14,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:14,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:27:14,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:14,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:27:14,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:27:14,330 INFO L87 Difference]: Start difference. First operand 106213 states and 177876 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-23 23:27:21,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:21,445 INFO L93 Difference]: Finished difference Result 265481 states and 444870 transitions. [2024-11-23 23:27:21,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:27:21,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 617 [2024-11-23 23:27:21,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:22,813 INFO L225 Difference]: With dead ends: 265481 [2024-11-23 23:27:22,814 INFO L226 Difference]: Without dead ends: 159271 [2024-11-23 23:27:23,141 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 [2024-11-23 23:27:23,144 INFO L435 NwaCegarLoop]: 530 mSDtfsCounter, 348 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:23,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1052 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:27:23,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159271 states.