./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label05.c --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_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/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_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/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_6dde33fa-f432-4036-b0fa-ebd57c6d0241/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 814707fd20d5e6c26ff7c37a631e7717aed30ef7e6a1e8c64960ffc8d41abd55 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:24:56,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:24:56,197 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:24:56,205 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:24:56,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:24:56,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:24:56,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:24:56,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:24:56,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:24:56,246 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:24:56,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:24:56,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:24:56,247 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:24:56,247 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:24:56,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:24:56,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:24:56,249 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:24:56,249 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:24:56,249 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:24:56,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:24:56,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:24:56,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:24:56,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:24:56,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:24:56,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:24:56,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:24:56,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:24:56,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:24:56,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:24:56,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:24:56,250 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:24:56,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:24:56,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:24:56,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:24:56,250 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:24:56,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:24:56,250 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:24:56,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:24:56,250 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_6dde33fa-f432-4036-b0fa-ebd57c6d0241/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 -> 814707fd20d5e6c26ff7c37a631e7717aed30ef7e6a1e8c64960ffc8d41abd55 [2024-11-24 01:24:56,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:24:56,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:24:56,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:24:56,577 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:24:56,577 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:24:56,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label05.c [2024-11-24 01:24:59,582 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/data/06bb79ec9/c5c234dc545a4f58b97a0e4990c967ec/FLAG9fcda2323 [2024-11-24 01:25:00,170 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:25:00,171 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label05.c [2024-11-24 01:25:00,212 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/data/06bb79ec9/c5c234dc545a4f58b97a0e4990c967ec/FLAG9fcda2323 [2024-11-24 01:25:00,231 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/data/06bb79ec9/c5c234dc545a4f58b97a0e4990c967ec [2024-11-24 01:25:00,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:25:00,236 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:25:00,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:25:00,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:25:00,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:25:00,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:25:00" (1/1) ... [2024-11-24 01:25:00,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d0666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:00, skipping insertion in model container [2024-11-24 01:25:00,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:25:00" (1/1) ... [2024-11-24 01:25:00,380 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:25:00,756 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_6dde33fa-f432-4036-b0fa-ebd57c6d0241/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label05.c[26860,26873] [2024-11-24 01:25:00,842 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_6dde33fa-f432-4036-b0fa-ebd57c6d0241/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label05.c[33796,33809] [2024-11-24 01:25:01,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:25:01,661 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:25:01,726 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_6dde33fa-f432-4036-b0fa-ebd57c6d0241/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label05.c[26860,26873] [2024-11-24 01:25:01,736 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_6dde33fa-f432-4036-b0fa-ebd57c6d0241/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label05.c[33796,33809] [2024-11-24 01:25:02,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:25:02,239 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:25:02,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02 WrapperNode [2024-11-24 01:25:02,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:25:02,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:25:02,243 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:25:02,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:25:02,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:02,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:02,757 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5291 [2024-11-24 01:25:02,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:25:02,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:25:02,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:25:02,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:25:02,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:02,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:02,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:03,191 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:25:03,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:03,191 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:03,348 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:03,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:03,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:03,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:03,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:03,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:25:03,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:25:03,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:25:03,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:25:03,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (1/1) ... [2024-11-24 01:25:03,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:25:03,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:03,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:25:03,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dde33fa-f432-4036-b0fa-ebd57c6d0241/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:25:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:25:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:25:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:25:03,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:25:03,857 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:25:03,859 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:25:09,855 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-24 01:25:09,856 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:25:09,901 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:25:09,902 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-24 01:25:09,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:25:09 BoogieIcfgContainer [2024-11-24 01:25:09,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:25:09,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:25:09,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:25:09,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:25:09,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:25:00" (1/3) ... [2024-11-24 01:25:09,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568e9890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:25:09, skipping insertion in model container [2024-11-24 01:25:09,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:02" (2/3) ... [2024-11-24 01:25:09,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568e9890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:25:09, skipping insertion in model container [2024-11-24 01:25:09,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:25:09" (3/3) ... [2024-11-24 01:25:09,917 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label05.c [2024-11-24 01:25:09,935 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:25:09,939 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label05.c that has 1 procedures, 948 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-24 01:25:10,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:25:10,043 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;@1dd2eb20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:25:10,043 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 01:25:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:10,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-24 01:25:10,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:10,062 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:10,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:10,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:10,068 INFO L85 PathProgramCache]: Analyzing trace with hash 607462501, now seen corresponding path program 1 times [2024-11-24 01:25:10,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:10,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257719182] [2024-11-24 01:25:10,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:10,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:10,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:10,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257719182] [2024-11-24 01:25:10,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257719182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:10,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:10,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:25:10,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039282306] [2024-11-24 01:25:10,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:10,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:25:10,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:10,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:25:10,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:25:10,492 INFO L87 Difference]: Start difference. First operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:10,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:10,611 INFO L93 Difference]: Finished difference Result 1829 states and 3466 transitions. [2024-11-24 01:25:10,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:25:10,613 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-24 01:25:10,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:10,627 INFO L225 Difference]: With dead ends: 1829 [2024-11-24 01:25:10,627 INFO L226 Difference]: Without dead ends: 882 [2024-11-24 01:25:10,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:25:10,635 INFO L435 NwaCegarLoop]: 1732 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, 1732 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:10,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:10,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-24 01:25:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-11-24 01:25:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8920454545454546) internal successors, (1665), 881 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:10,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1665 transitions. [2024-11-24 01:25:10,730 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1665 transitions. Word has length 31 [2024-11-24 01:25:10,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:10,731 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1665 transitions. [2024-11-24 01:25:10,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1665 transitions. [2024-11-24 01:25:10,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-24 01:25:10,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:10,733 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:10,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:25:10,742 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:10,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:10,743 INFO L85 PathProgramCache]: Analyzing trace with hash 748011111, now seen corresponding path program 1 times [2024-11-24 01:25:10,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:10,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901283144] [2024-11-24 01:25:10,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:10,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:11,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:11,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901283144] [2024-11-24 01:25:11,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901283144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:11,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:11,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:11,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398995041] [2024-11-24 01:25:11,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:11,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:25:11,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:11,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:25:11,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:25:11,152 INFO L87 Difference]: Start difference. First operand 882 states and 1665 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:11,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:11,514 INFO L93 Difference]: Finished difference Result 947 states and 1767 transitions. [2024-11-24 01:25:11,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:25:11,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-24 01:25:11,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:11,534 INFO L225 Difference]: With dead ends: 947 [2024-11-24 01:25:11,534 INFO L226 Difference]: Without dead ends: 882 [2024-11-24 01:25:11,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:25:11,542 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:11,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6586 Invalid, 73 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:25:11,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-24 01:25:11,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-11-24 01:25:11,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8227272727272728) internal successors, (1604), 881 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:11,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1604 transitions. [2024-11-24 01:25:11,617 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1604 transitions. Word has length 31 [2024-11-24 01:25:11,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:11,617 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1604 transitions. [2024-11-24 01:25:11,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:11,617 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1604 transitions. [2024-11-24 01:25:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 01:25:11,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:11,621 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:11,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:25:11,621 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:11,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1019264101, now seen corresponding path program 1 times [2024-11-24 01:25:11,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392076485] [2024-11-24 01:25:11,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:11,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:12,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:12,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:12,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392076485] [2024-11-24 01:25:12,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392076485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:12,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:12,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:12,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525062572] [2024-11-24 01:25:12,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:12,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:25:12,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:12,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:25:12,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:25:12,025 INFO L87 Difference]: Start difference. First operand 882 states and 1604 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:20,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:20,289 INFO L93 Difference]: Finished difference Result 3137 states and 5913 transitions. [2024-11-24 01:25:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:25:20,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-24 01:25:20,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:20,301 INFO L225 Difference]: With dead ends: 3137 [2024-11-24 01:25:20,303 INFO L226 Difference]: Without dead ends: 2384 [2024-11-24 01:25:20,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:25:20,309 INFO L435 NwaCegarLoop]: 840 mSDtfsCounter, 2523 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:20,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2523 Valid, 858 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-24 01:25:20,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-11-24 01:25:20,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2384. [2024-11-24 01:25:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2382 states have (on average 1.5608732157850547) internal successors, (3718), 2383 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3718 transitions. [2024-11-24 01:25:20,415 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3718 transitions. Word has length 60 [2024-11-24 01:25:20,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:20,416 INFO L471 AbstractCegarLoop]: Abstraction has 2384 states and 3718 transitions. [2024-11-24 01:25:20,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:20,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3718 transitions. [2024-11-24 01:25:20,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-24 01:25:20,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:20,421 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:20,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:25:20,421 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:20,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:20,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1819257143, now seen corresponding path program 1 times [2024-11-24 01:25:20,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:20,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713939339] [2024-11-24 01:25:20,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:20,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:20,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:20,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713939339] [2024-11-24 01:25:20,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713939339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:20,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:20,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:25:20,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154604694] [2024-11-24 01:25:20,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:20,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:25:20,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:20,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:25:20,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:25:20,987 INFO L87 Difference]: Start difference. First operand 2384 states and 3718 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:21,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:21,738 INFO L93 Difference]: Finished difference Result 3360 states and 5286 transitions. [2024-11-24 01:25:21,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:25:21,740 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-24 01:25:21,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:21,757 INFO L225 Difference]: With dead ends: 3360 [2024-11-24 01:25:21,757 INFO L226 Difference]: Without dead ends: 3299 [2024-11-24 01:25:21,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:25:21,760 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13470 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13470 SdHoareTripleChecker+Valid, 6211 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:21,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13470 Valid, 6211 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:25:21,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2024-11-24 01:25:21,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 2443. [2024-11-24 01:25:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2441 states have (on average 1.5620647275706678) internal successors, (3813), 2442 states have internal predecessors, (3813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:21,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3813 transitions. [2024-11-24 01:25:21,860 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3813 transitions. Word has length 91 [2024-11-24 01:25:21,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:21,861 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3813 transitions. [2024-11-24 01:25:21,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:21,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3813 transitions. [2024-11-24 01:25:21,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 01:25:21,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:21,866 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:21,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:25:21,866 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:21,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:21,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1161263545, now seen corresponding path program 1 times [2024-11-24 01:25:21,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:21,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419373538] [2024-11-24 01:25:21,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:21,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:22,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:22,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419373538] [2024-11-24 01:25:22,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419373538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:22,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:22,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:22,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224716642] [2024-11-24 01:25:22,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:22,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:22,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:22,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:22,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:22,065 INFO L87 Difference]: Start difference. First operand 2443 states and 3813 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:22,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:22,122 INFO L93 Difference]: Finished difference Result 2672 states and 4180 transitions. [2024-11-24 01:25:22,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:22,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 01:25:22,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:22,133 INFO L225 Difference]: With dead ends: 2672 [2024-11-24 01:25:22,133 INFO L226 Difference]: Without dead ends: 2552 [2024-11-24 01:25:22,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:22,135 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1506 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:22,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-11-24 01:25:22,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-11-24 01:25:22,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.5631868131868132) internal successors, (3983), 2549 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:22,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3983 transitions. [2024-11-24 01:25:22,218 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3983 transitions. Word has length 93 [2024-11-24 01:25:22,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:22,219 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3983 transitions. [2024-11-24 01:25:22,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:22,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3983 transitions. [2024-11-24 01:25:22,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 01:25:22,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:22,221 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:22,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:25:22,221 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:22,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:22,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1094770033, now seen corresponding path program 1 times [2024-11-24 01:25:22,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:22,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927587642] [2024-11-24 01:25:22,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:22,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:23,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:23,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:23,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927587642] [2024-11-24 01:25:23,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927587642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:23,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:23,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:25:23,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405241392] [2024-11-24 01:25:23,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:23,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:25:23,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:23,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:25:23,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:25:23,089 INFO L87 Difference]: Start difference. First operand 2550 states and 3983 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:23,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:23,782 INFO L93 Difference]: Finished difference Result 2779 states and 4347 transitions. [2024-11-24 01:25:23,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:25:23,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 01:25:23,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:23,798 INFO L225 Difference]: With dead ends: 2779 [2024-11-24 01:25:23,799 INFO L226 Difference]: Without dead ends: 2552 [2024-11-24 01:25:23,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:25:23,801 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1590 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:23,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 2366 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:25:23,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-11-24 01:25:23,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-11-24 01:25:23,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.5624018838304552) internal successors, (3981), 2549 states have internal predecessors, (3981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:23,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3981 transitions. [2024-11-24 01:25:23,870 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3981 transitions. Word has length 93 [2024-11-24 01:25:23,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:23,871 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3981 transitions. [2024-11-24 01:25:23,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:23,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3981 transitions. [2024-11-24 01:25:23,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 01:25:23,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:23,872 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:23,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:25:23,873 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:23,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:23,873 INFO L85 PathProgramCache]: Analyzing trace with hash 7144525, now seen corresponding path program 1 times [2024-11-24 01:25:23,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:23,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143216505] [2024-11-24 01:25:23,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:23,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:24,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:24,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143216505] [2024-11-24 01:25:24,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143216505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:24,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:24,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:24,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502037559] [2024-11-24 01:25:24,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:24,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:25:24,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:24,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:25:24,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:25:24,285 INFO L87 Difference]: Start difference. First operand 2550 states and 3981 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:24,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:24,338 INFO L93 Difference]: Finished difference Result 2558 states and 3990 transitions. [2024-11-24 01:25:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:25:24,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-24 01:25:24,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:24,347 INFO L225 Difference]: With dead ends: 2558 [2024-11-24 01:25:24,348 INFO L226 Difference]: Without dead ends: 2556 [2024-11-24 01:25:24,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:25:24,349 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:24,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6395 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:24,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2024-11-24 01:25:24,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2556. [2024-11-24 01:25:24,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 2554 states have (on average 1.5606891151135474) internal successors, (3986), 2555 states have internal predecessors, (3986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:24,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3986 transitions. [2024-11-24 01:25:24,409 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3986 transitions. Word has length 94 [2024-11-24 01:25:24,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:24,409 INFO L471 AbstractCegarLoop]: Abstraction has 2556 states and 3986 transitions. [2024-11-24 01:25:24,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3986 transitions. [2024-11-24 01:25:24,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:25:24,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:24,410 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:24,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:25:24,411 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:24,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:24,411 INFO L85 PathProgramCache]: Analyzing trace with hash 471923503, now seen corresponding path program 1 times [2024-11-24 01:25:24,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:24,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783043343] [2024-11-24 01:25:24,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:24,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:24,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:24,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783043343] [2024-11-24 01:25:24,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783043343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:24,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:24,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:24,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718476787] [2024-11-24 01:25:24,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:24,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:24,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:24,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:24,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:24,537 INFO L87 Difference]: Start difference. First operand 2556 states and 3986 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:24,588 INFO L93 Difference]: Finished difference Result 2803 states and 4372 transitions. [2024-11-24 01:25:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:24,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-24 01:25:24,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:24,597 INFO L225 Difference]: With dead ends: 2803 [2024-11-24 01:25:24,597 INFO L226 Difference]: Without dead ends: 2677 [2024-11-24 01:25:24,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:24,599 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1526 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:24,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:24,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-11-24 01:25:24,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2675. [2024-11-24 01:25:24,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2673 states have (on average 1.5600448933782267) internal successors, (4170), 2674 states have internal predecessors, (4170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:24,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 4170 transitions. [2024-11-24 01:25:24,661 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 4170 transitions. Word has length 95 [2024-11-24 01:25:24,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:24,661 INFO L471 AbstractCegarLoop]: Abstraction has 2675 states and 4170 transitions. [2024-11-24 01:25:24,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:24,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 4170 transitions. [2024-11-24 01:25:24,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:25:24,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:24,665 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:24,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:25:24,666 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:24,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:24,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1510056913, now seen corresponding path program 1 times [2024-11-24 01:25:24,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:24,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073214941] [2024-11-24 01:25:24,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:24,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:24,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:24,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073214941] [2024-11-24 01:25:24,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073214941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:24,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:24,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:24,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817660062] [2024-11-24 01:25:24,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:24,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:24,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:24,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:24,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:24,792 INFO L87 Difference]: Start difference. First operand 2675 states and 4170 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:24,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:24,840 INFO L93 Difference]: Finished difference Result 3349 states and 5222 transitions. [2024-11-24 01:25:24,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:24,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-24 01:25:24,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:24,850 INFO L225 Difference]: With dead ends: 3349 [2024-11-24 01:25:24,850 INFO L226 Difference]: Without dead ends: 3000 [2024-11-24 01:25:24,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:24,852 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1524 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:24,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:24,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2024-11-24 01:25:24,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2998. [2024-11-24 01:25:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2996 states have (on average 1.5580774365821095) internal successors, (4668), 2997 states have internal predecessors, (4668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:24,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4668 transitions. [2024-11-24 01:25:24,927 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4668 transitions. Word has length 95 [2024-11-24 01:25:24,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:24,928 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 4668 transitions. [2024-11-24 01:25:24,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:24,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4668 transitions. [2024-11-24 01:25:24,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:25:24,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:24,929 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:24,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:25:24,929 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:24,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:24,930 INFO L85 PathProgramCache]: Analyzing trace with hash 594927151, now seen corresponding path program 1 times [2024-11-24 01:25:24,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:24,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718228383] [2024-11-24 01:25:24,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:24,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:25,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:25,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:25,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718228383] [2024-11-24 01:25:25,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718228383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:25,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:25,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:25,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715890005] [2024-11-24 01:25:25,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:25,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:25,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:25,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:25,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:25,045 INFO L87 Difference]: Start difference. First operand 2998 states and 4668 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:25,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:25,107 INFO L93 Difference]: Finished difference Result 4294 states and 6674 transitions. [2024-11-24 01:25:25,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:25,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-24 01:25:25,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:25,120 INFO L225 Difference]: With dead ends: 4294 [2024-11-24 01:25:25,120 INFO L226 Difference]: Without dead ends: 3622 [2024-11-24 01:25:25,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:25,123 INFO L435 NwaCegarLoop]: 1676 mSDtfsCounter, 1520 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:25,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:25,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2024-11-24 01:25:25,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3620. [2024-11-24 01:25:25,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 1.5522388059701493) internal successors, (5616), 3619 states have internal predecessors, (5616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 5616 transitions. [2024-11-24 01:25:25,219 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 5616 transitions. Word has length 95 [2024-11-24 01:25:25,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:25,220 INFO L471 AbstractCegarLoop]: Abstraction has 3620 states and 5616 transitions. [2024-11-24 01:25:25,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5616 transitions. [2024-11-24 01:25:25,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:25:25,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:25,222 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:25,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:25:25,222 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:25,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:25,222 INFO L85 PathProgramCache]: Analyzing trace with hash 858783535, now seen corresponding path program 1 times [2024-11-24 01:25:25,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:25,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479457369] [2024-11-24 01:25:25,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:25,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:25,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:25,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:25,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479457369] [2024-11-24 01:25:25,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479457369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:25,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:25,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:25,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115441716] [2024-11-24 01:25:25,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:25,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:25,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:25,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:25,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:25,373 INFO L87 Difference]: Start difference. First operand 3620 states and 5616 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:25,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:25,454 INFO L93 Difference]: Finished difference Result 6112 states and 9434 transitions. [2024-11-24 01:25:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:25,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-24 01:25:25,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:25,467 INFO L225 Difference]: With dead ends: 6112 [2024-11-24 01:25:25,467 INFO L226 Difference]: Without dead ends: 4818 [2024-11-24 01:25:25,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:25,470 INFO L435 NwaCegarLoop]: 1674 mSDtfsCounter, 1518 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:25,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:25,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2024-11-24 01:25:25,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4816. [2024-11-24 01:25:25,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 4814 states have (on average 1.5405068550062317) internal successors, (7416), 4815 states have internal predecessors, (7416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 7416 transitions. [2024-11-24 01:25:25,608 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 7416 transitions. Word has length 95 [2024-11-24 01:25:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:25,608 INFO L471 AbstractCegarLoop]: Abstraction has 4816 states and 7416 transitions. [2024-11-24 01:25:25,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 7416 transitions. [2024-11-24 01:25:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:25:25,610 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:25,610 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:25,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:25:25,610 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:25,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash -118423249, now seen corresponding path program 1 times [2024-11-24 01:25:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:25,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809861039] [2024-11-24 01:25:25,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:25,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:25,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:25,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:25,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809861039] [2024-11-24 01:25:25,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809861039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:25,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:25,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:25,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249843846] [2024-11-24 01:25:25,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:25,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:25,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:25,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:25,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:25,713 INFO L87 Difference]: Start difference. First operand 4816 states and 7416 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:25,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:25,836 INFO L93 Difference]: Finished difference Result 9604 states and 14666 transitions. [2024-11-24 01:25:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:25,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-24 01:25:25,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:25,853 INFO L225 Difference]: With dead ends: 9604 [2024-11-24 01:25:25,853 INFO L226 Difference]: Without dead ends: 7114 [2024-11-24 01:25:25,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:25,858 INFO L435 NwaCegarLoop]: 1662 mSDtfsCounter, 1514 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:25,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:25,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2024-11-24 01:25:26,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 7112. [2024-11-24 01:25:26,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 7110 states have (on average 1.5223628691983122) internal successors, (10824), 7111 states have internal predecessors, (10824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:26,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 10824 transitions. [2024-11-24 01:25:26,076 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 10824 transitions. Word has length 95 [2024-11-24 01:25:26,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:26,077 INFO L471 AbstractCegarLoop]: Abstraction has 7112 states and 10824 transitions. [2024-11-24 01:25:26,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:26,077 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 10824 transitions. [2024-11-24 01:25:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:25:26,079 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:26,079 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:26,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:25:26,080 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:26,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:26,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1662509615, now seen corresponding path program 1 times [2024-11-24 01:25:26,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:26,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660908972] [2024-11-24 01:25:26,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:26,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:26,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:26,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:26,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660908972] [2024-11-24 01:25:26,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660908972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:26,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:26,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:26,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085781331] [2024-11-24 01:25:26,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:26,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:26,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:26,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:26,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:26,189 INFO L87 Difference]: Start difference. First operand 7112 states and 10824 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:26,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:26,397 INFO L93 Difference]: Finished difference Result 16300 states and 24554 transitions. [2024-11-24 01:25:26,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:26,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-24 01:25:26,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:26,423 INFO L225 Difference]: With dead ends: 16300 [2024-11-24 01:25:26,423 INFO L226 Difference]: Without dead ends: 11514 [2024-11-24 01:25:26,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:26,432 INFO L435 NwaCegarLoop]: 1660 mSDtfsCounter, 1512 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:26,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:26,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2024-11-24 01:25:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 11512. [2024-11-24 01:25:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11512 states, 11510 states have (on average 1.499218071242398) internal successors, (17256), 11511 states have internal predecessors, (17256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:26,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11512 states to 11512 states and 17256 transitions. [2024-11-24 01:25:26,947 INFO L78 Accepts]: Start accepts. Automaton has 11512 states and 17256 transitions. Word has length 95 [2024-11-24 01:25:26,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:26,947 INFO L471 AbstractCegarLoop]: Abstraction has 11512 states and 17256 transitions. [2024-11-24 01:25:26,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:26,948 INFO L276 IsEmpty]: Start isEmpty. Operand 11512 states and 17256 transitions. [2024-11-24 01:25:26,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:25:26,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:26,949 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:26,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:25:26,949 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:26,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:26,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2097045551, now seen corresponding path program 1 times [2024-11-24 01:25:26,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:26,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105915168] [2024-11-24 01:25:26,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:26,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:27,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:27,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105915168] [2024-11-24 01:25:27,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105915168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:27,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:27,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:27,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666426874] [2024-11-24 01:25:27,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:27,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:27,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:27,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:27,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:27,143 INFO L87 Difference]: Start difference. First operand 11512 states and 17256 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:27,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:27,761 INFO L93 Difference]: Finished difference Result 29116 states and 43178 transitions. [2024-11-24 01:25:27,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:27,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-24 01:25:27,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:27,805 INFO L225 Difference]: With dead ends: 29116 [2024-11-24 01:25:27,805 INFO L226 Difference]: Without dead ends: 19930 [2024-11-24 01:25:27,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:27,815 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 1516 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:27,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:27,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19930 states. [2024-11-24 01:25:28,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19930 to 19928. [2024-11-24 01:25:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19928 states, 19926 states have (on average 1.473050286058416) internal successors, (29352), 19927 states have internal predecessors, (29352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:28,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19928 states to 19928 states and 29352 transitions. [2024-11-24 01:25:28,449 INFO L78 Accepts]: Start accepts. Automaton has 19928 states and 29352 transitions. Word has length 95 [2024-11-24 01:25:28,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:28,449 INFO L471 AbstractCegarLoop]: Abstraction has 19928 states and 29352 transitions. [2024-11-24 01:25:28,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:28,449 INFO L276 IsEmpty]: Start isEmpty. Operand 19928 states and 29352 transitions. [2024-11-24 01:25:28,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:25:28,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:28,451 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:28,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:25:28,452 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:28,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:28,452 INFO L85 PathProgramCache]: Analyzing trace with hash 432012591, now seen corresponding path program 1 times [2024-11-24 01:25:28,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:28,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192475481] [2024-11-24 01:25:28,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:28,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:28,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:28,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:28,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192475481] [2024-11-24 01:25:28,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192475481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:28,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:28,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:28,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528618109] [2024-11-24 01:25:28,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:28,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:28,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:28,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:28,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:28,627 INFO L87 Difference]: Start difference. First operand 19928 states and 29352 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:29,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:29,463 INFO L93 Difference]: Finished difference Result 53596 states and 78122 transitions. [2024-11-24 01:25:29,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:29,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-24 01:25:29,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:29,584 INFO L225 Difference]: With dead ends: 53596 [2024-11-24 01:25:29,584 INFO L226 Difference]: Without dead ends: 35994 [2024-11-24 01:25:29,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:29,629 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1522 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:29,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:29,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35994 states. [2024-11-24 01:25:30,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35994 to 35992. [2024-11-24 01:25:31,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35992 states, 35990 states have (on average 1.4450680744651292) internal successors, (52008), 35991 states have internal predecessors, (52008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:31,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35992 states to 35992 states and 52008 transitions. [2024-11-24 01:25:31,130 INFO L78 Accepts]: Start accepts. Automaton has 35992 states and 52008 transitions. Word has length 95 [2024-11-24 01:25:31,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:31,131 INFO L471 AbstractCegarLoop]: Abstraction has 35992 states and 52008 transitions. [2024-11-24 01:25:31,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:31,131 INFO L276 IsEmpty]: Start isEmpty. Operand 35992 states and 52008 transitions. [2024-11-24 01:25:31,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 01:25:31,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:31,144 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:31,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:25:31,145 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:31,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:31,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1265201594, now seen corresponding path program 1 times [2024-11-24 01:25:31,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:31,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947837362] [2024-11-24 01:25:31,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:31,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:31,668 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:25:31,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:31,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947837362] [2024-11-24 01:25:31,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947837362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:31,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:31,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:25:31,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137927947] [2024-11-24 01:25:31,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:31,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:25:31,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:31,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:25:31,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:25:31,672 INFO L87 Difference]: Start difference. First operand 35992 states and 52008 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:36,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:36,937 INFO L93 Difference]: Finished difference Result 301994 states and 434097 transitions. [2024-11-24 01:25:36,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:25:36,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-24 01:25:36,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:37,667 INFO L225 Difference]: With dead ends: 301994 [2024-11-24 01:25:37,667 INFO L226 Difference]: Without dead ends: 278440 [2024-11-24 01:25:37,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:25:37,726 INFO L435 NwaCegarLoop]: 1701 mSDtfsCounter, 11802 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11802 SdHoareTripleChecker+Valid, 5167 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:37,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11802 Valid, 5167 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:25:37,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278440 states. [2024-11-24 01:25:41,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278440 to 64664. [2024-11-24 01:25:41,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64664 states, 64662 states have (on average 1.435773715628963) internal successors, (92840), 64663 states have internal predecessors, (92840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64664 states to 64664 states and 92840 transitions. [2024-11-24 01:25:41,328 INFO L78 Accepts]: Start accepts. Automaton has 64664 states and 92840 transitions. Word has length 121 [2024-11-24 01:25:41,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:41,330 INFO L471 AbstractCegarLoop]: Abstraction has 64664 states and 92840 transitions. [2024-11-24 01:25:41,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:41,531 INFO L276 IsEmpty]: Start isEmpty. Operand 64664 states and 92840 transitions. [2024-11-24 01:25:41,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 01:25:41,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:41,544 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:41,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:25:41,545 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:41,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:41,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1047785286, now seen corresponding path program 1 times [2024-11-24 01:25:41,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:41,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644035770] [2024-11-24 01:25:41,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:41,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:41,936 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 01:25:41,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:41,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644035770] [2024-11-24 01:25:41,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644035770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:41,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:41,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:25:41,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231786300] [2024-11-24 01:25:41,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:41,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:25:41,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:41,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:25:41,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:25:41,939 INFO L87 Difference]: Start difference. First operand 64664 states and 92840 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:49,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:49,415 INFO L93 Difference]: Finished difference Result 335658 states and 482225 transitions. [2024-11-24 01:25:49,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:25:49,415 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-24 01:25:49,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:49,831 INFO L225 Difference]: With dead ends: 335658 [2024-11-24 01:25:49,832 INFO L226 Difference]: Without dead ends: 301992 [2024-11-24 01:25:49,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:25:49,895 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 11804 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11804 SdHoareTripleChecker+Valid, 5106 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:49,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11804 Valid, 5106 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:25:50,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301992 states. [2024-11-24 01:25:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301992 to 110104. [2024-11-24 01:25:54,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110104 states, 110102 states have (on average 1.4303100761112424) internal successors, (157480), 110103 states have internal predecessors, (157480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:54,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110104 states to 110104 states and 157480 transitions. [2024-11-24 01:25:54,956 INFO L78 Accepts]: Start accepts. Automaton has 110104 states and 157480 transitions. Word has length 121 [2024-11-24 01:25:54,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:54,957 INFO L471 AbstractCegarLoop]: Abstraction has 110104 states and 157480 transitions. [2024-11-24 01:25:54,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:54,957 INFO L276 IsEmpty]: Start isEmpty. Operand 110104 states and 157480 transitions. [2024-11-24 01:25:54,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 01:25:54,968 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:54,968 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:54,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:25:54,969 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:54,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:54,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1142197946, now seen corresponding path program 1 times [2024-11-24 01:25:54,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:54,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18476339] [2024-11-24 01:25:54,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:54,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:55,734 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 01:25:55,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:55,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18476339] [2024-11-24 01:25:55,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18476339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:55,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:55,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:25:55,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371390231] [2024-11-24 01:25:55,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:55,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:25:55,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:55,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:25:55,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:25:55,737 INFO L87 Difference]: Start difference. First operand 110104 states and 157480 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:26:05,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:05,365 INFO L93 Difference]: Finished difference Result 369322 states and 530225 transitions. [2024-11-24 01:26:05,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:26:05,366 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-24 01:26:05,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:05,692 INFO L225 Difference]: With dead ends: 369322 [2024-11-24 01:26:05,692 INFO L226 Difference]: Without dead ends: 335656 [2024-11-24 01:26:05,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:26:05,740 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 11848 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11848 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:05,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11848 Valid, 5122 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:26:05,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335656 states. [2024-11-24 01:26:11,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335656 to 143768. [2024-11-24 01:26:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143768 states, 143766 states have (on average 1.4292670033248474) internal successors, (205480), 143767 states have internal predecessors, (205480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:26:12,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143768 states to 143768 states and 205480 transitions. [2024-11-24 01:26:12,278 INFO L78 Accepts]: Start accepts. Automaton has 143768 states and 205480 transitions. Word has length 121 [2024-11-24 01:26:12,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:12,278 INFO L471 AbstractCegarLoop]: Abstraction has 143768 states and 205480 transitions. [2024-11-24 01:26:12,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:26:12,279 INFO L276 IsEmpty]: Start isEmpty. Operand 143768 states and 205480 transitions. [2024-11-24 01:26:12,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 01:26:12,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:12,290 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:12,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:26:12,290 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:12,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:12,291 INFO L85 PathProgramCache]: Analyzing trace with hash -878341562, now seen corresponding path program 1 times [2024-11-24 01:26:12,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:12,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033686515] [2024-11-24 01:26:12,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:12,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:12,732 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 01:26:12,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:12,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033686515] [2024-11-24 01:26:12,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033686515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:12,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:12,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:26:12,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954641916] [2024-11-24 01:26:12,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:12,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:26:12,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:12,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:26:12,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:26:12,735 INFO L87 Difference]: Start difference. First operand 143768 states and 205480 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:26:22,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:22,995 INFO L93 Difference]: Finished difference Result 402986 states and 578225 transitions. [2024-11-24 01:26:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:26:22,996 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-24 01:26:22,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:23,410 INFO L225 Difference]: With dead ends: 402986 [2024-11-24 01:26:23,410 INFO L226 Difference]: Without dead ends: 369320 [2024-11-24 01:26:23,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:26:23,463 INFO L435 NwaCegarLoop]: 1696 mSDtfsCounter, 12002 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12002 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:23,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12002 Valid, 4993 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:26:23,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369320 states. [2024-11-24 01:26:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369320 to 177432. [2024-11-24 01:26:30,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177432 states, 177430 states have (on average 1.4286197373612128) internal successors, (253480), 177431 states have internal predecessors, (253480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:26:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177432 states to 177432 states and 253480 transitions. [2024-11-24 01:26:31,225 INFO L78 Accepts]: Start accepts. Automaton has 177432 states and 253480 transitions. Word has length 121 [2024-11-24 01:26:31,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:31,225 INFO L471 AbstractCegarLoop]: Abstraction has 177432 states and 253480 transitions. [2024-11-24 01:26:31,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:26:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 177432 states and 253480 transitions. [2024-11-24 01:26:31,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 01:26:31,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:31,240 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:31,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:26:31,240 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:31,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:31,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1855548346, now seen corresponding path program 1 times [2024-11-24 01:26:31,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:31,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723483264] [2024-11-24 01:26:31,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:31,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:31,677 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-24 01:26:31,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:31,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723483264] [2024-11-24 01:26:31,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723483264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:31,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:31,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:26:31,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105413176] [2024-11-24 01:26:31,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:31,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:26:31,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:31,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:26:31,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:26:31,679 INFO L87 Difference]: Start difference. First operand 177432 states and 253480 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)