./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.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_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/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_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/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_b881e78e-0e4d-424b-a561-74771b08cabb/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 762d765a0bfa38e2766b0b76686f2c77e8bd37a42ad4f655f125678c5ab317c3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:39:03,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:39:03,791 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:39:03,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:39:03,801 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:39:03,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:39:03,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:39:03,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:39:03,850 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:39:03,851 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:39:03,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:39:03,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:39:03,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:39:03,853 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:39:03,853 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:39:03,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:39:03,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:39:03,854 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:39:03,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:39:03,854 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:39:03,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:39:03,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:39:03,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:39:03,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:39:03,856 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:39:03,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:39:03,856 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:39:03,856 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:39:03,856 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:39:03,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:39:03,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:39:03,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:39:03,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:39:03,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:39:03,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:39:03,859 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:39:03,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:39:03,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:39:03,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:39:03,860 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:39:03,860 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:39:03,860 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:39:03,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:39:03,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:39:03,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:39:03,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:39:03,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:39:03,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:39:03,861 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_b881e78e-0e4d-424b-a561-74771b08cabb/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 -> 762d765a0bfa38e2766b0b76686f2c77e8bd37a42ad4f655f125678c5ab317c3 [2024-11-23 18:39:04,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:39:04,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:39:04,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:39:04,337 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:39:04,337 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:39:04,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-23 18:39:08,369 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/data/7d6bb2cfe/be261a2a291049cda59ad721b5c85723/FLAG9db8d8634 [2024-11-23 18:39:09,101 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:39:09,107 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-23 18:39:09,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/data/7d6bb2cfe/be261a2a291049cda59ad721b5c85723/FLAG9db8d8634 [2024-11-23 18:39:09,444 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/data/7d6bb2cfe/be261a2a291049cda59ad721b5c85723 [2024-11-23 18:39:09,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:39:09,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:39:09,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:39:09,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:39:09,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:39:09,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:39:09" (1/1) ... [2024-11-23 18:39:09,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0127e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:09, skipping insertion in model container [2024-11-23 18:39:09,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:39:09" (1/1) ... [2024-11-23 18:39:09,625 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:39:10,414 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_b881e78e-0e4d-424b-a561-74771b08cabb/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[35193,35206] [2024-11-23 18:39:10,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:39:10,687 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:39:11,107 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_b881e78e-0e4d-424b-a561-74771b08cabb/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[35193,35206] [2024-11-23 18:39:11,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:39:11,340 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:39:11,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11 WrapperNode [2024-11-23 18:39:11,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:39:11,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:39:11,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:39:11,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:39:11,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,536 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3096 [2024-11-23 18:39:11,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:39:11,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:39:11,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:39:11,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:39:11,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,568 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,640 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:39:11,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,710 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:39:11,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:39:11,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:39:11,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:39:11,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (1/1) ... [2024-11-23 18:39:11,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:39:11,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:39:11,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:39:11,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b881e78e-0e4d-424b-a561-74771b08cabb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:39:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:39:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:39:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:39:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:39:12,222 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:39:12,225 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:39:16,450 INFO L? ?]: Removed 209 outVars from TransFormulas that were not future-live. [2024-11-23 18:39:16,451 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:39:16,508 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:39:16,509 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 18:39:16,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:39:16 BoogieIcfgContainer [2024-11-23 18:39:16,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:39:16,519 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:39:16,519 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:39:16,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:39:16,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:39:09" (1/3) ... [2024-11-23 18:39:16,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a0f1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:39:16, skipping insertion in model container [2024-11-23 18:39:16,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:11" (2/3) ... [2024-11-23 18:39:16,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a0f1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:39:16, skipping insertion in model container [2024-11-23 18:39:16,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:39:16" (3/3) ... [2024-11-23 18:39:16,533 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-23 18:39:16,554 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:39:16,559 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 803 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 18:39:16,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:39:16,699 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;@1036f9df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:39:16,699 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:39:16,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 803 states, 801 states have (on average 1.7815230961298376) internal successors, (1427), 802 states have internal predecessors, (1427), 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) [2024-11-23 18:39:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-23 18:39:16,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:16,757 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:16,758 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:16,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:16,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1895719391, now seen corresponding path program 1 times [2024-11-23 18:39:16,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:16,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302900375] [2024-11-23 18:39:16,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:16,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:18,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:18,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302900375] [2024-11-23 18:39:18,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302900375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:18,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:18,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:18,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108922258] [2024-11-23 18:39:18,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:18,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:18,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:18,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:18,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:18,628 INFO L87 Difference]: Start difference. First operand has 803 states, 801 states have (on average 1.7815230961298376) internal successors, (1427), 802 states have internal predecessors, (1427), 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 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-23 18:39:19,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:19,153 INFO L93 Difference]: Finished difference Result 1520 states and 2676 transitions. [2024-11-23 18:39:19,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:19,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 326 [2024-11-23 18:39:19,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:19,185 INFO L225 Difference]: With dead ends: 1520 [2024-11-23 18:39:19,186 INFO L226 Difference]: Without dead ends: 1307 [2024-11-23 18:39:19,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:19,198 INFO L435 NwaCegarLoop]: 1366 mSDtfsCounter, 877 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:19,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 2515 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:39:19,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2024-11-23 18:39:19,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1305. [2024-11-23 18:39:19,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 1304 states have (on average 1.5613496932515338) internal successors, (2036), 1304 states have internal predecessors, (2036), 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) [2024-11-23 18:39:19,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 2036 transitions. [2024-11-23 18:39:19,357 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 2036 transitions. Word has length 326 [2024-11-23 18:39:19,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:19,362 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 2036 transitions. [2024-11-23 18:39:19,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-23 18:39:19,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 2036 transitions. [2024-11-23 18:39:19,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-23 18:39:19,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:19,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:19,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:39:19,377 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:19,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash -838090867, now seen corresponding path program 1 times [2024-11-23 18:39:19,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:19,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879374879] [2024-11-23 18:39:19,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:19,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:20,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:20,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:20,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879374879] [2024-11-23 18:39:20,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879374879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:20,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:20,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:20,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129641176] [2024-11-23 18:39:20,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:20,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:20,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:20,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:20,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:20,171 INFO L87 Difference]: Start difference. First operand 1305 states and 2036 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-23 18:39:20,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:20,498 INFO L93 Difference]: Finished difference Result 2635 states and 4139 transitions. [2024-11-23 18:39:20,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:20,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 326 [2024-11-23 18:39:20,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:20,517 INFO L225 Difference]: With dead ends: 2635 [2024-11-23 18:39:20,518 INFO L226 Difference]: Without dead ends: 2277 [2024-11-23 18:39:20,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:20,521 INFO L435 NwaCegarLoop]: 1189 mSDtfsCounter, 711 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2180 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:20,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 2180 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:39:20,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2024-11-23 18:39:20,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 2275. [2024-11-23 18:39:20,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2275 states, 2274 states have (on average 1.5567282321899736) internal successors, (3540), 2274 states have internal predecessors, (3540), 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) [2024-11-23 18:39:20,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 3540 transitions. [2024-11-23 18:39:20,639 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 3540 transitions. Word has length 326 [2024-11-23 18:39:20,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:20,641 INFO L471 AbstractCegarLoop]: Abstraction has 2275 states and 3540 transitions. [2024-11-23 18:39:20,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-23 18:39:20,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 3540 transitions. [2024-11-23 18:39:20,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-23 18:39:20,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:20,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:20,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:39:20,658 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:20,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:20,664 INFO L85 PathProgramCache]: Analyzing trace with hash -610935221, now seen corresponding path program 1 times [2024-11-23 18:39:20,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:20,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352162060] [2024-11-23 18:39:20,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:20,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:21,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:21,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:21,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352162060] [2024-11-23 18:39:21,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352162060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:21,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:21,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:21,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609903439] [2024-11-23 18:39:21,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:21,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:21,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:21,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:21,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:21,326 INFO L87 Difference]: Start difference. First operand 2275 states and 3540 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-23 18:39:21,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:21,683 INFO L93 Difference]: Finished difference Result 4843 states and 7598 transitions. [2024-11-23 18:39:21,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:21,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 326 [2024-11-23 18:39:21,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:21,705 INFO L225 Difference]: With dead ends: 4843 [2024-11-23 18:39:21,705 INFO L226 Difference]: Without dead ends: 4177 [2024-11-23 18:39:21,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:21,709 INFO L435 NwaCegarLoop]: 1189 mSDtfsCounter, 702 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:21,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 2165 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:39:21,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4177 states. [2024-11-23 18:39:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4177 to 4175. [2024-11-23 18:39:21,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4175 states, 4174 states have (on average 1.552467656923814) internal successors, (6480), 4174 states have internal predecessors, (6480), 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) [2024-11-23 18:39:21,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4175 states to 4175 states and 6480 transitions. [2024-11-23 18:39:21,854 INFO L78 Accepts]: Start accepts. Automaton has 4175 states and 6480 transitions. Word has length 326 [2024-11-23 18:39:21,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:21,856 INFO L471 AbstractCegarLoop]: Abstraction has 4175 states and 6480 transitions. [2024-11-23 18:39:21,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-23 18:39:21,856 INFO L276 IsEmpty]: Start isEmpty. Operand 4175 states and 6480 transitions. [2024-11-23 18:39:21,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-23 18:39:21,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:21,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:21,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:39:21,870 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:21,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:21,872 INFO L85 PathProgramCache]: Analyzing trace with hash 621643781, now seen corresponding path program 1 times [2024-11-23 18:39:21,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:21,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983663090] [2024-11-23 18:39:21,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:21,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:24,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:24,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:24,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983663090] [2024-11-23 18:39:24,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983663090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:24,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:24,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:39:24,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270685145] [2024-11-23 18:39:24,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:24,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:39:24,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:24,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:39:24,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:39:24,013 INFO L87 Difference]: Start difference. First operand 4175 states and 6480 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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) [2024-11-23 18:39:24,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:24,417 INFO L93 Difference]: Finished difference Result 16323 states and 25281 transitions. [2024-11-23 18:39:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:39:24,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 326 [2024-11-23 18:39:24,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:24,469 INFO L225 Difference]: With dead ends: 16323 [2024-11-23 18:39:24,469 INFO L226 Difference]: Without dead ends: 12195 [2024-11-23 18:39:24,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:39:24,482 INFO L435 NwaCegarLoop]: 1899 mSDtfsCounter, 2311 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 4231 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:24,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2311 Valid, 4231 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:39:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12195 states. [2024-11-23 18:39:24,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12195 to 8188. [2024-11-23 18:39:24,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8188 states, 8187 states have (on average 1.5434224990839136) internal successors, (12636), 8187 states have internal predecessors, (12636), 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) [2024-11-23 18:39:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8188 states to 8188 states and 12636 transitions. [2024-11-23 18:39:24,836 INFO L78 Accepts]: Start accepts. Automaton has 8188 states and 12636 transitions. Word has length 326 [2024-11-23 18:39:24,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:24,837 INFO L471 AbstractCegarLoop]: Abstraction has 8188 states and 12636 transitions. [2024-11-23 18:39:24,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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) [2024-11-23 18:39:24,839 INFO L276 IsEmpty]: Start isEmpty. Operand 8188 states and 12636 transitions. [2024-11-23 18:39:24,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-23 18:39:24,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:24,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:24,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:39:24,861 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:24,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:24,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1177259334, now seen corresponding path program 1 times [2024-11-23 18:39:24,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:24,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298247832] [2024-11-23 18:39:24,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:24,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:25,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:25,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:25,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298247832] [2024-11-23 18:39:25,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298247832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:25,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:25,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:25,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130759038] [2024-11-23 18:39:25,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:25,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:25,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:25,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:25,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:25,349 INFO L87 Difference]: Start difference. First operand 8188 states and 12636 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-23 18:39:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:25,692 INFO L93 Difference]: Finished difference Result 24127 states and 37161 transitions. [2024-11-23 18:39:25,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:25,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 328 [2024-11-23 18:39:25,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:25,787 INFO L225 Difference]: With dead ends: 24127 [2024-11-23 18:39:25,787 INFO L226 Difference]: Without dead ends: 16064 [2024-11-23 18:39:25,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:25,801 INFO L435 NwaCegarLoop]: 2423 mSDtfsCounter, 1108 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:25,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 3608 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:39:25,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16064 states. [2024-11-23 18:39:26,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16064 to 16062. [2024-11-23 18:39:26,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16062 states, 16061 states have (on average 1.5342755743727041) internal successors, (24642), 16061 states have internal predecessors, (24642), 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) [2024-11-23 18:39:26,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16062 states to 16062 states and 24642 transitions. [2024-11-23 18:39:26,522 INFO L78 Accepts]: Start accepts. Automaton has 16062 states and 24642 transitions. Word has length 328 [2024-11-23 18:39:26,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:26,523 INFO L471 AbstractCegarLoop]: Abstraction has 16062 states and 24642 transitions. [2024-11-23 18:39:26,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-23 18:39:26,524 INFO L276 IsEmpty]: Start isEmpty. Operand 16062 states and 24642 transitions. [2024-11-23 18:39:26,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-23 18:39:26,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:26,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:26,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:39:26,567 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:26,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:26,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2057091457, now seen corresponding path program 1 times [2024-11-23 18:39:26,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:26,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820403283] [2024-11-23 18:39:26,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:26,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:26,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:26,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:26,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820403283] [2024-11-23 18:39:26,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820403283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:26,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:26,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:26,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671923631] [2024-11-23 18:39:26,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:26,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:26,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:26,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:26,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:26,924 INFO L87 Difference]: Start difference. First operand 16062 states and 24642 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-23 18:39:27,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:27,452 INFO L93 Difference]: Finished difference Result 48119 states and 73805 transitions. [2024-11-23 18:39:27,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:27,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 328 [2024-11-23 18:39:27,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:27,540 INFO L225 Difference]: With dead ends: 48119 [2024-11-23 18:39:27,540 INFO L226 Difference]: Without dead ends: 32095 [2024-11-23 18:39:27,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:27,559 INFO L435 NwaCegarLoop]: 2476 mSDtfsCounter, 1235 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 3712 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:27,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 3712 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:39:27,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32095 states. [2024-11-23 18:39:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32095 to 16081. [2024-11-23 18:39:28,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16081 states, 16080 states have (on average 1.5342661691542288) internal successors, (24671), 16080 states have internal predecessors, (24671), 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) [2024-11-23 18:39:28,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16081 states to 16081 states and 24671 transitions. [2024-11-23 18:39:28,326 INFO L78 Accepts]: Start accepts. Automaton has 16081 states and 24671 transitions. Word has length 328 [2024-11-23 18:39:28,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:28,327 INFO L471 AbstractCegarLoop]: Abstraction has 16081 states and 24671 transitions. [2024-11-23 18:39:28,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-23 18:39:28,327 INFO L276 IsEmpty]: Start isEmpty. Operand 16081 states and 24671 transitions. [2024-11-23 18:39:28,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-23 18:39:28,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:28,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:28,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:39:28,355 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:28,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:28,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1095378133, now seen corresponding path program 1 times [2024-11-23 18:39:28,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:28,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134463146] [2024-11-23 18:39:28,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:28,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:28,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:28,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134463146] [2024-11-23 18:39:28,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134463146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:28,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:28,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:28,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588811893] [2024-11-23 18:39:28,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:28,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:28,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:28,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:28,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:28,668 INFO L87 Difference]: Start difference. First operand 16081 states and 24671 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-23 18:39:29,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:29,022 INFO L93 Difference]: Finished difference Result 32124 states and 49272 transitions. [2024-11-23 18:39:29,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:29,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 329 [2024-11-23 18:39:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:29,064 INFO L225 Difference]: With dead ends: 32124 [2024-11-23 18:39:29,065 INFO L226 Difference]: Without dead ends: 16099 [2024-11-23 18:39:29,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:29,082 INFO L435 NwaCegarLoop]: 1259 mSDtfsCounter, 5 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:29,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2503 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:39:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16099 states. [2024-11-23 18:39:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16099 to 16099. [2024-11-23 18:39:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16099 states, 16098 states have (on average 1.5338551372841347) internal successors, (24692), 16098 states have internal predecessors, (24692), 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) [2024-11-23 18:39:29,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16099 states to 16099 states and 24692 transitions. [2024-11-23 18:39:29,496 INFO L78 Accepts]: Start accepts. Automaton has 16099 states and 24692 transitions. Word has length 329 [2024-11-23 18:39:29,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:29,496 INFO L471 AbstractCegarLoop]: Abstraction has 16099 states and 24692 transitions. [2024-11-23 18:39:29,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-23 18:39:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand 16099 states and 24692 transitions. [2024-11-23 18:39:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-23 18:39:29,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:29,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:29,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:39:29,527 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:29,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:29,528 INFO L85 PathProgramCache]: Analyzing trace with hash -174338763, now seen corresponding path program 1 times [2024-11-23 18:39:29,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:29,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196102739] [2024-11-23 18:39:29,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:29,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:30,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:30,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:30,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196102739] [2024-11-23 18:39:30,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196102739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:30,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:30,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:30,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540128261] [2024-11-23 18:39:30,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:30,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:30,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:30,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:30,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:30,110 INFO L87 Difference]: Start difference. First operand 16099 states and 24692 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2024-11-23 18:39:30,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:30,643 INFO L93 Difference]: Finished difference Result 47338 states and 72454 transitions. [2024-11-23 18:39:30,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:30,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 330 [2024-11-23 18:39:30,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:30,746 INFO L225 Difference]: With dead ends: 47338 [2024-11-23 18:39:30,746 INFO L226 Difference]: Without dead ends: 31480 [2024-11-23 18:39:30,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:30,777 INFO L435 NwaCegarLoop]: 2428 mSDtfsCounter, 1102 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 3613 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:30,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 3613 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:39:30,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31480 states. [2024-11-23 18:39:31,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31480 to 31478. [2024-11-23 18:39:31,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31478 states, 31477 states have (on average 1.5238110366299202) internal successors, (47965), 31477 states have internal predecessors, (47965), 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) [2024-11-23 18:39:31,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31478 states to 31478 states and 47965 transitions. [2024-11-23 18:39:31,946 INFO L78 Accepts]: Start accepts. Automaton has 31478 states and 47965 transitions. Word has length 330 [2024-11-23 18:39:31,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:31,946 INFO L471 AbstractCegarLoop]: Abstraction has 31478 states and 47965 transitions. [2024-11-23 18:39:31,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2024-11-23 18:39:31,947 INFO L276 IsEmpty]: Start isEmpty. Operand 31478 states and 47965 transitions. [2024-11-23 18:39:32,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-23 18:39:32,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:32,000 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:32,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:39:32,001 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:32,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2022187602, now seen corresponding path program 1 times [2024-11-23 18:39:32,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:32,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115212837] [2024-11-23 18:39:32,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:32,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:33,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:33,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115212837] [2024-11-23 18:39:33,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115212837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:33,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:33,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:39:33,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598880062] [2024-11-23 18:39:33,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:33,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:39:33,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:33,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:39:33,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:39:33,713 INFO L87 Difference]: Start difference. First operand 31478 states and 47965 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2024-11-23 18:39:34,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:34,496 INFO L93 Difference]: Finished difference Result 122802 states and 186627 transitions. [2024-11-23 18:39:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:39:34,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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 330 [2024-11-23 18:39:34,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:34,767 INFO L225 Difference]: With dead ends: 122802 [2024-11-23 18:39:34,767 INFO L226 Difference]: Without dead ends: 91500 [2024-11-23 18:39:34,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:39:34,832 INFO L435 NwaCegarLoop]: 2417 mSDtfsCounter, 2315 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2315 SdHoareTripleChecker+Valid, 5212 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:34,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2315 Valid, 5212 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:39:34,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91500 states. [2024-11-23 18:39:36,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91500 to 61508. [2024-11-23 18:39:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61508 states, 61507 states have (on average 1.5129172289332922) internal successors, (93055), 61507 states have internal predecessors, (93055), 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) [2024-11-23 18:39:36,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61508 states to 61508 states and 93055 transitions. [2024-11-23 18:39:36,751 INFO L78 Accepts]: Start accepts. Automaton has 61508 states and 93055 transitions. Word has length 330 [2024-11-23 18:39:36,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:36,751 INFO L471 AbstractCegarLoop]: Abstraction has 61508 states and 93055 transitions. [2024-11-23 18:39:36,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2024-11-23 18:39:36,752 INFO L276 IsEmpty]: Start isEmpty. Operand 61508 states and 93055 transitions. [2024-11-23 18:39:36,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-23 18:39:36,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:36,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:36,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:39:36,872 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:36,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:36,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1558694314, now seen corresponding path program 1 times [2024-11-23 18:39:36,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:36,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687442622] [2024-11-23 18:39:36,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:36,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:39,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:39,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687442622] [2024-11-23 18:39:39,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687442622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:39,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:39,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:39:39,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857143095] [2024-11-23 18:39:39,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:39,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:39:39,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:39,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:39:39,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:39:39,425 INFO L87 Difference]: Start difference. First operand 61508 states and 93055 transitions. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2024-11-23 18:39:40,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:40,377 INFO L93 Difference]: Finished difference Result 183035 states and 276566 transitions. [2024-11-23 18:39:40,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:39:40,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 332 [2024-11-23 18:39:40,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:40,773 INFO L225 Difference]: With dead ends: 183035 [2024-11-23 18:39:40,773 INFO L226 Difference]: Without dead ends: 122393 [2024-11-23 18:39:40,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:39:40,852 INFO L435 NwaCegarLoop]: 2437 mSDtfsCounter, 1200 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 6110 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:40,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 6110 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:39:40,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122393 states. [2024-11-23 18:39:42,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122393 to 61943. [2024-11-23 18:39:42,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61943 states, 61942 states have (on average 1.513738658745278) internal successors, (93764), 61942 states have internal predecessors, (93764), 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) [2024-11-23 18:39:43,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61943 states to 61943 states and 93764 transitions. [2024-11-23 18:39:43,084 INFO L78 Accepts]: Start accepts. Automaton has 61943 states and 93764 transitions. Word has length 332 [2024-11-23 18:39:43,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:43,085 INFO L471 AbstractCegarLoop]: Abstraction has 61943 states and 93764 transitions. [2024-11-23 18:39:43,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2024-11-23 18:39:43,085 INFO L276 IsEmpty]: Start isEmpty. Operand 61943 states and 93764 transitions. [2024-11-23 18:39:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-23 18:39:43,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:43,175 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:43,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:39:43,175 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:43,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:43,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1007927346, now seen corresponding path program 1 times [2024-11-23 18:39:43,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:43,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303077721] [2024-11-23 18:39:43,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:43,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:43,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:43,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:43,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303077721] [2024-11-23 18:39:43,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303077721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:43,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:43,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:43,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376176497] [2024-11-23 18:39:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:43,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:43,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:43,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:43,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:43,544 INFO L87 Difference]: Start difference. First operand 61943 states and 93764 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2024-11-23 18:39:44,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:44,686 INFO L93 Difference]: Finished difference Result 158191 states and 241402 transitions. [2024-11-23 18:39:44,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:44,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 334 [2024-11-23 18:39:44,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:44,830 INFO L225 Difference]: With dead ends: 158191 [2024-11-23 18:39:44,830 INFO L226 Difference]: Without dead ends: 99513 [2024-11-23 18:39:44,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:44,860 INFO L435 NwaCegarLoop]: 1737 mSDtfsCounter, 695 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:44,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 2747 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:39:44,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99513 states. [2024-11-23 18:39:46,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99513 to 77879. [2024-11-23 18:39:46,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77879 states, 77878 states have (on average 1.5396902848044378) internal successors, (119908), 77878 states have internal predecessors, (119908), 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) [2024-11-23 18:39:47,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77879 states to 77879 states and 119908 transitions. [2024-11-23 18:39:47,074 INFO L78 Accepts]: Start accepts. Automaton has 77879 states and 119908 transitions. Word has length 334 [2024-11-23 18:39:47,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:47,075 INFO L471 AbstractCegarLoop]: Abstraction has 77879 states and 119908 transitions. [2024-11-23 18:39:47,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2024-11-23 18:39:47,076 INFO L276 IsEmpty]: Start isEmpty. Operand 77879 states and 119908 transitions. [2024-11-23 18:39:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-23 18:39:47,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:47,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:47,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:39:47,133 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:47,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:47,134 INFO L85 PathProgramCache]: Analyzing trace with hash -509294144, now seen corresponding path program 1 times [2024-11-23 18:39:47,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:47,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517247125] [2024-11-23 18:39:47,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:47,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:47,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:47,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:47,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517247125] [2024-11-23 18:39:47,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517247125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:47,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:47,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:47,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550324104] [2024-11-23 18:39:47,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:47,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:47,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:47,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:47,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:47,381 INFO L87 Difference]: Start difference. First operand 77879 states and 119908 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2024-11-23 18:39:48,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:48,732 INFO L93 Difference]: Finished difference Result 230985 states and 355139 transitions. [2024-11-23 18:39:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:48,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 334 [2024-11-23 18:39:48,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:48,983 INFO L225 Difference]: With dead ends: 230985 [2024-11-23 18:39:48,988 INFO L226 Difference]: Without dead ends: 154467 [2024-11-23 18:39:49,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:49,096 INFO L435 NwaCegarLoop]: 2338 mSDtfsCounter, 1100 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 3570 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 [2024-11-23 18:39:49,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 3570 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:39:49,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154467 states. [2024-11-23 18:39:51,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154467 to 78081. [2024-11-23 18:39:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78081 states, 78080 states have (on average 1.5392546106557377) internal successors, (120185), 78080 states have internal predecessors, (120185), 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) [2024-11-23 18:39:51,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78081 states to 78081 states and 120185 transitions. [2024-11-23 18:39:51,337 INFO L78 Accepts]: Start accepts. Automaton has 78081 states and 120185 transitions. Word has length 334 [2024-11-23 18:39:51,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:51,337 INFO L471 AbstractCegarLoop]: Abstraction has 78081 states and 120185 transitions. [2024-11-23 18:39:51,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2024-11-23 18:39:51,338 INFO L276 IsEmpty]: Start isEmpty. Operand 78081 states and 120185 transitions. [2024-11-23 18:39:51,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-23 18:39:51,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:51,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:51,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:39:51,394 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:51,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:51,395 INFO L85 PathProgramCache]: Analyzing trace with hash -708946404, now seen corresponding path program 1 times [2024-11-23 18:39:51,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:51,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372993865] [2024-11-23 18:39:51,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:51,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:51,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:51,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:51,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372993865] [2024-11-23 18:39:51,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372993865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:51,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:51,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:51,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676246195] [2024-11-23 18:39:51,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:51,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:51,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:51,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:51,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:51,941 INFO L87 Difference]: Start difference. First operand 78081 states and 120185 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2024-11-23 18:39:52,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:52,497 INFO L93 Difference]: Finished difference Result 154855 states and 238114 transitions. [2024-11-23 18:39:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:52,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 335 [2024-11-23 18:39:52,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:52,616 INFO L225 Difference]: With dead ends: 154855 [2024-11-23 18:39:52,617 INFO L226 Difference]: Without dead ends: 78324 [2024-11-23 18:39:52,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:52,704 INFO L435 NwaCegarLoop]: 1256 mSDtfsCounter, 5 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2496 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 [2024-11-23 18:39:52,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2496 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:39:52,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78324 states. [2024-11-23 18:39:55,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78324 to 78324. [2024-11-23 18:39:55,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78324 states, 78323 states have (on average 1.538092258978844) internal successors, (120468), 78323 states have internal predecessors, (120468), 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) [2024-11-23 18:39:55,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78324 states to 78324 states and 120468 transitions. [2024-11-23 18:39:55,310 INFO L78 Accepts]: Start accepts. Automaton has 78324 states and 120468 transitions. Word has length 335 [2024-11-23 18:39:55,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:55,310 INFO L471 AbstractCegarLoop]: Abstraction has 78324 states and 120468 transitions. [2024-11-23 18:39:55,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2024-11-23 18:39:55,310 INFO L276 IsEmpty]: Start isEmpty. Operand 78324 states and 120468 transitions. [2024-11-23 18:39:55,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-23 18:39:55,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:55,366 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:55,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 18:39:55,367 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:55,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1552437421, now seen corresponding path program 1 times [2024-11-23 18:39:55,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:55,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806397631] [2024-11-23 18:39:55,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:55,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:56,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:56,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806397631] [2024-11-23 18:39:56,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806397631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:56,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:56,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:39:56,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248423806] [2024-11-23 18:39:56,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:56,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:39:56,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:56,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:39:56,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:39:56,850 INFO L87 Difference]: Start difference. First operand 78324 states and 120468 transitions. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-11-23 18:39:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:57,379 INFO L93 Difference]: Finished difference Result 156602 states and 240828 transitions. [2024-11-23 18:39:57,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:39:57,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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 336 [2024-11-23 18:39:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:57,485 INFO L225 Difference]: With dead ends: 156602 [2024-11-23 18:39:57,485 INFO L226 Difference]: Without dead ends: 79749 [2024-11-23 18:39:57,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:39:57,536 INFO L435 NwaCegarLoop]: 1361 mSDtfsCounter, 94 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 3955 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:57,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 3955 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:39:57,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79749 states. [2024-11-23 18:39:58,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79749 to 79401. [2024-11-23 18:39:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79401 states, 79400 states have (on average 1.5401007556675064) internal successors, (122284), 79400 states have internal predecessors, (122284), 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) [2024-11-23 18:39:59,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79401 states to 79401 states and 122284 transitions. [2024-11-23 18:39:59,293 INFO L78 Accepts]: Start accepts. Automaton has 79401 states and 122284 transitions. Word has length 336 [2024-11-23 18:39:59,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:59,294 INFO L471 AbstractCegarLoop]: Abstraction has 79401 states and 122284 transitions. [2024-11-23 18:39:59,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-11-23 18:39:59,294 INFO L276 IsEmpty]: Start isEmpty. Operand 79401 states and 122284 transitions. [2024-11-23 18:39:59,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-23 18:39:59,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:59,377 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:59,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:39:59,378 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:59,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:59,379 INFO L85 PathProgramCache]: Analyzing trace with hash -646373614, now seen corresponding path program 1 times [2024-11-23 18:39:59,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:59,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522050695] [2024-11-23 18:39:59,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:59,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:59,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:59,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522050695] [2024-11-23 18:39:59,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522050695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:59,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:59,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:59,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549513555] [2024-11-23 18:39:59,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:59,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:59,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:59,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:59,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:59,772 INFO L87 Difference]: Start difference. First operand 79401 states and 122284 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2024-11-23 18:40:00,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:00,883 INFO L93 Difference]: Finished difference Result 234299 states and 360300 transitions. [2024-11-23 18:40:00,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:00,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 336 [2024-11-23 18:40:00,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:01,085 INFO L225 Difference]: With dead ends: 234299 [2024-11-23 18:40:01,085 INFO L226 Difference]: Without dead ends: 155441 [2024-11-23 18:40:01,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:01,160 INFO L435 NwaCegarLoop]: 2408 mSDtfsCounter, 1082 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 3590 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:01,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 3590 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:40:01,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155441 states. [2024-11-23 18:40:04,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155441 to 155439. [2024-11-23 18:40:04,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155439 states, 155438 states have (on average 1.529748195421969) internal successors, (237781), 155438 states have internal predecessors, (237781), 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) [2024-11-23 18:40:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155439 states to 155439 states and 237781 transitions. [2024-11-23 18:40:04,385 INFO L78 Accepts]: Start accepts. Automaton has 155439 states and 237781 transitions. Word has length 336 [2024-11-23 18:40:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:04,386 INFO L471 AbstractCegarLoop]: Abstraction has 155439 states and 237781 transitions. [2024-11-23 18:40:04,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2024-11-23 18:40:04,386 INFO L276 IsEmpty]: Start isEmpty. Operand 155439 states and 237781 transitions. [2024-11-23 18:40:04,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-23 18:40:04,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:04,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:04,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 18:40:04,461 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:04,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:04,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1386520815, now seen corresponding path program 1 times [2024-11-23 18:40:04,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:04,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908412813] [2024-11-23 18:40:04,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:04,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:06,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:06,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908412813] [2024-11-23 18:40:06,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908412813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:06,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:06,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:40:06,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325357856] [2024-11-23 18:40:06,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:06,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:40:06,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:06,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:40:06,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:06,568 INFO L87 Difference]: Start difference. First operand 155439 states and 237781 transitions. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-11-23 18:40:08,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:08,003 INFO L93 Difference]: Finished difference Result 288043 states and 439801 transitions. [2024-11-23 18:40:08,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:40:08,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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 336 [2024-11-23 18:40:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:08,807 INFO L225 Difference]: With dead ends: 288043 [2024-11-23 18:40:08,807 INFO L226 Difference]: Without dead ends: 137489 [2024-11-23 18:40:08,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:08,864 INFO L435 NwaCegarLoop]: 1383 mSDtfsCounter, 99 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 4004 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:08,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 4004 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:40:08,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137489 states. [2024-11-23 18:40:11,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137489 to 137229. [2024-11-23 18:40:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137229 states, 137228 states have (on average 1.5286166088553357) internal successors, (209769), 137228 states have internal predecessors, (209769), 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) [2024-11-23 18:40:11,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137229 states to 137229 states and 209769 transitions. [2024-11-23 18:40:11,648 INFO L78 Accepts]: Start accepts. Automaton has 137229 states and 209769 transitions. Word has length 336 [2024-11-23 18:40:11,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:11,649 INFO L471 AbstractCegarLoop]: Abstraction has 137229 states and 209769 transitions. [2024-11-23 18:40:11,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-11-23 18:40:11,649 INFO L276 IsEmpty]: Start isEmpty. Operand 137229 states and 209769 transitions. [2024-11-23 18:40:11,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-23 18:40:11,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:11,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:11,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 18:40:11,736 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:11,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:11,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2039427818, now seen corresponding path program 1 times [2024-11-23 18:40:11,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:11,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386668138] [2024-11-23 18:40:11,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:11,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:11,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:11,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:11,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386668138] [2024-11-23 18:40:11,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386668138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:11,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:11,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:40:11,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545031625] [2024-11-23 18:40:11,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:11,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:11,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:11,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:11,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:11,985 INFO L87 Difference]: Start difference. First operand 137229 states and 209769 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2024-11-23 18:40:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:14,079 INFO L93 Difference]: Finished difference Result 385541 states and 587223 transitions. [2024-11-23 18:40:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:14,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 337 [2024-11-23 18:40:14,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:14,426 INFO L225 Difference]: With dead ends: 385541 [2024-11-23 18:40:14,426 INFO L226 Difference]: Without dead ends: 252593 [2024-11-23 18:40:14,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:14,514 INFO L435 NwaCegarLoop]: 2319 mSDtfsCounter, 1093 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 3499 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:14,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 3499 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:40:14,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252593 states.