./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.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_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/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_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/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_f25abac3-ef33-49b6-b1e3-6c3deead0712/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 dfa3eba44a9bea88c5e5172bb0d59f15b4500aac9e1ca0a62eab29a7e65f8827 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:36:11,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:36:11,258 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:36:11,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:36:11,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:36:11,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:36:11,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:36:11,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:36:11,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:36:11,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:36:11,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:36:11,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:36:11,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:36:11,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:36:11,317 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:36:11,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:36:11,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:36:11,318 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:36:11,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:36:11,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:36:11,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:36:11,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:36:11,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:36:11,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:36:11,319 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:36:11,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:36:11,319 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:36:11,319 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:36:11,319 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:36:11,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:36:11,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:36:11,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:36:11,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:36:11,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:36:11,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:36:11,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:36:11,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:36:11,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:36:11,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:36:11,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:36:11,321 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:36:11,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:36:11,321 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:36:11,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:36:11,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:36:11,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:36:11,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:36:11,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:36:11,323 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_f25abac3-ef33-49b6-b1e3-6c3deead0712/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 -> dfa3eba44a9bea88c5e5172bb0d59f15b4500aac9e1ca0a62eab29a7e65f8827 [2024-11-24 01:36:11,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:36:11,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:36:11,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:36:11,722 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:36:11,723 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:36:11,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-24 01:36:15,251 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/data/31140aa60/dafe818a41db4af9bc2ef174326ea889/FLAG205c8f3b4 [2024-11-24 01:36:16,090 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:36:16,092 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-24 01:36:16,140 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/data/31140aa60/dafe818a41db4af9bc2ef174326ea889/FLAG205c8f3b4 [2024-11-24 01:36:16,167 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/data/31140aa60/dafe818a41db4af9bc2ef174326ea889 [2024-11-24 01:36:16,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:36:16,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:36:16,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:36:16,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:36:16,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:36:16,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:36:16" (1/1) ... [2024-11-24 01:36:16,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8c2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:16, skipping insertion in model container [2024-11-24 01:36:16,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:36:16" (1/1) ... [2024-11-24 01:36:16,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:36:16,909 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_f25abac3-ef33-49b6-b1e3-6c3deead0712/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c[26925,26938] [2024-11-24 01:36:17,021 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_f25abac3-ef33-49b6-b1e3-6c3deead0712/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c[34215,34228] [2024-11-24 01:36:18,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:36:18,060 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:36:18,135 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_f25abac3-ef33-49b6-b1e3-6c3deead0712/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c[26925,26938] [2024-11-24 01:36:18,161 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_f25abac3-ef33-49b6-b1e3-6c3deead0712/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c[34215,34228] [2024-11-24 01:36:18,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:36:18,923 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:36:18,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18 WrapperNode [2024-11-24 01:36:18,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:36:18,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:36:18,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:36:18,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:36:18,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:19,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:19,456 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5290 [2024-11-24 01:36:19,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:36:19,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:36:19,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:36:19,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:36:19,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:19,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:19,544 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:19,953 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:36:19,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:19,954 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:20,131 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:20,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:20,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:20,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:20,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:20,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:36:20,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:36:20,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:36:20,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:36:20,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (1/1) ... [2024-11-24 01:36:20,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:36:20,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:36:20,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:36:20,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f25abac3-ef33-49b6-b1e3-6c3deead0712/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:36:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:36:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:36:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:36:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:36:20,664 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:36:20,666 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:36:28,870 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-24 01:36:28,871 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:36:28,935 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:36:28,935 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 01:36:28,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:36:28 BoogieIcfgContainer [2024-11-24 01:36:28,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:36:28,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:36:28,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:36:28,952 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:36:28,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:36:16" (1/3) ... [2024-11-24 01:36:28,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5a7f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:36:28, skipping insertion in model container [2024-11-24 01:36:28,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:18" (2/3) ... [2024-11-24 01:36:28,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5a7f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:36:28, skipping insertion in model container [2024-11-24 01:36:28,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:36:28" (3/3) ... [2024-11-24 01:36:28,958 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-24 01:36:28,979 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:36:28,983 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label02.c that has 1 procedures, 949 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-24 01:36:29,127 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:36:29,147 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;@46d71cd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:36:29,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 01:36:29,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-24 01:36:29,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:29,177 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] [2024-11-24 01:36:29,177 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:29,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:29,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1967767115, now seen corresponding path program 1 times [2024-11-24 01:36:29,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:29,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114425033] [2024-11-24 01:36:29,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:29,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:29,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:29,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:29,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114425033] [2024-11-24 01:36:29,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114425033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:29,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:29,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:36:29,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569493695] [2024-11-24 01:36:29,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:29,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:36:29,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:29,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:36:29,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:36:29,693 INFO L87 Difference]: Start difference. First operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:29,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:29,852 INFO L93 Difference]: Finished difference Result 1829 states and 3468 transitions. [2024-11-24 01:36:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:36:29,854 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2024-11-24 01:36:29,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:29,887 INFO L225 Difference]: With dead ends: 1829 [2024-11-24 01:36:29,887 INFO L226 Difference]: Without dead ends: 883 [2024-11-24 01:36:29,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:36:29,906 INFO L435 NwaCegarLoop]: 1731 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:29,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:29,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-24 01:36:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-11-24 01:36:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8921679909194098) internal successors, (1667), 882 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:30,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1667 transitions. [2024-11-24 01:36:30,053 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1667 transitions. Word has length 30 [2024-11-24 01:36:30,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:30,054 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1667 transitions. [2024-11-24 01:36:30,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:30,054 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1667 transitions. [2024-11-24 01:36:30,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-24 01:36:30,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:30,056 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] [2024-11-24 01:36:30,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:36:30,057 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:30,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:30,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2101780621, now seen corresponding path program 1 times [2024-11-24 01:36:30,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:30,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653414366] [2024-11-24 01:36:30,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:30,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:30,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:30,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:30,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653414366] [2024-11-24 01:36:30,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653414366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:30,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:30,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:36:30,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74018147] [2024-11-24 01:36:30,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:30,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:36:30,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:30,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:36:30,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:36:30,602 INFO L87 Difference]: Start difference. First operand 883 states and 1667 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:30,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:30,902 INFO L93 Difference]: Finished difference Result 949 states and 1771 transitions. [2024-11-24 01:36:30,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:36:30,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2024-11-24 01:36:30,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:30,910 INFO L225 Difference]: With dead ends: 949 [2024-11-24 01:36:30,914 INFO L226 Difference]: Without dead ends: 883 [2024-11-24 01:36:30,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:36:30,916 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 0 mSDsluCounter, 4929 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6594 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:30,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6594 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:36:30,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-24 01:36:30,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-11-24 01:36:30,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8229284903518728) internal successors, (1606), 882 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:30,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1606 transitions. [2024-11-24 01:36:30,973 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1606 transitions. Word has length 30 [2024-11-24 01:36:30,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:30,974 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1606 transitions. [2024-11-24 01:36:30,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:30,974 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1606 transitions. [2024-11-24 01:36:30,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 01:36:30,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:30,980 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] [2024-11-24 01:36:30,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:36:30,980 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:30,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:30,981 INFO L85 PathProgramCache]: Analyzing trace with hash 839561939, now seen corresponding path program 1 times [2024-11-24 01:36:30,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:30,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857916500] [2024-11-24 01:36:30,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:30,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:31,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:31,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857916500] [2024-11-24 01:36:31,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857916500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:31,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:31,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:36:31,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717059171] [2024-11-24 01:36:31,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:31,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:36:31,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:31,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:36:31,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:31,267 INFO L87 Difference]: Start difference. First operand 883 states and 1606 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:37,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:37,592 INFO L93 Difference]: Finished difference Result 2387 states and 4479 transitions. [2024-11-24 01:36:37,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:36:37,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2024-11-24 01:36:37,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:37,604 INFO L225 Difference]: With dead ends: 2387 [2024-11-24 01:36:37,605 INFO L226 Difference]: Without dead ends: 1634 [2024-11-24 01:36:37,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:37,610 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 905 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:37,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 642 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-24 01:36:37,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-11-24 01:36:37,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2024-11-24 01:36:37,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.5839460784313726) internal successors, (2585), 1633 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:37,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2585 transitions. [2024-11-24 01:36:37,706 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2585 transitions. Word has length 63 [2024-11-24 01:36:37,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:37,707 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2585 transitions. [2024-11-24 01:36:37,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:37,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2585 transitions. [2024-11-24 01:36:37,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-24 01:36:37,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:37,715 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] [2024-11-24 01:36:37,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:36:37,715 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:37,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:37,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1651582301, now seen corresponding path program 1 times [2024-11-24 01:36:37,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:37,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543907536] [2024-11-24 01:36:37,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:37,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:38,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:38,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:38,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543907536] [2024-11-24 01:36:38,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543907536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:38,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:38,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:36:38,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146417415] [2024-11-24 01:36:38,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:38,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:36:38,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:38,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:36:38,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:36:38,664 INFO L87 Difference]: Start difference. First operand 1634 states and 2585 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:39,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:39,680 INFO L93 Difference]: Finished difference Result 2626 states and 4185 transitions. [2024-11-24 01:36:39,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:36:39,681 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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 90 [2024-11-24 01:36:39,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:39,697 INFO L225 Difference]: With dead ends: 2626 [2024-11-24 01:36:39,697 INFO L226 Difference]: Without dead ends: 2564 [2024-11-24 01:36:39,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:36:39,700 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13578 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13578 SdHoareTripleChecker+Valid, 5575 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:39,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13578 Valid, 5575 Invalid, 314 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:36:39,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2024-11-24 01:36:39,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 1694. [2024-11-24 01:36:39,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1692 states have (on average 1.5851063829787233) internal successors, (2682), 1693 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2682 transitions. [2024-11-24 01:36:39,770 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2682 transitions. Word has length 90 [2024-11-24 01:36:39,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:39,771 INFO L471 AbstractCegarLoop]: Abstraction has 1694 states and 2682 transitions. [2024-11-24 01:36:39,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:39,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2682 transitions. [2024-11-24 01:36:39,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 01:36:39,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:39,774 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] [2024-11-24 01:36:39,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:36:39,774 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:39,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:39,775 INFO L85 PathProgramCache]: Analyzing trace with hash 551619955, now seen corresponding path program 1 times [2024-11-24 01:36:39,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:39,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047907326] [2024-11-24 01:36:39,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:39,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:40,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:40,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047907326] [2024-11-24 01:36:40,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047907326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:40,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:40,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:36:40,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629023937] [2024-11-24 01:36:40,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:40,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:36:40,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:40,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:36:40,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:40,028 INFO L87 Difference]: Start difference. First operand 1694 states and 2682 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:40,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:40,088 INFO L93 Difference]: Finished difference Result 1927 states and 3057 transitions. [2024-11-24 01:36:40,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:36:40,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2024-11-24 01:36:40,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:40,097 INFO L225 Difference]: With dead ends: 1927 [2024-11-24 01:36:40,097 INFO L226 Difference]: Without dead ends: 1805 [2024-11-24 01:36:40,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:40,101 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1508 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:40,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:40,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2024-11-24 01:36:40,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1801. [2024-11-24 01:36:40,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1799 states have (on average 1.5853251806559199) internal successors, (2852), 1800 states have internal predecessors, (2852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:40,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2852 transitions. [2024-11-24 01:36:40,158 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2852 transitions. Word has length 92 [2024-11-24 01:36:40,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:40,158 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2852 transitions. [2024-11-24 01:36:40,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:40,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2852 transitions. [2024-11-24 01:36:40,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 01:36:40,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:40,160 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] [2024-11-24 01:36:40,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:36:40,160 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:40,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:40,161 INFO L85 PathProgramCache]: Analyzing trace with hash 618113467, now seen corresponding path program 1 times [2024-11-24 01:36:40,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:40,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160292] [2024-11-24 01:36:40,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:40,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:40,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:40,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160292] [2024-11-24 01:36:40,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:40,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:40,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:36:40,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885310312] [2024-11-24 01:36:40,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:40,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:36:40,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:40,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:36:40,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:36:40,966 INFO L87 Difference]: Start difference. First operand 1801 states and 2852 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:41,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:41,605 INFO L93 Difference]: Finished difference Result 2032 states and 3220 transitions. [2024-11-24 01:36:41,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:36:41,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2024-11-24 01:36:41,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:41,617 INFO L225 Difference]: With dead ends: 2032 [2024-11-24 01:36:41,617 INFO L226 Difference]: Without dead ends: 1803 [2024-11-24 01:36:41,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:36:41,621 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 10647 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10647 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:41,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10647 Valid, 2278 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:36:41,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2024-11-24 01:36:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1801. [2024-11-24 01:36:41,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1799 states have (on average 1.584213451917732) internal successors, (2850), 1800 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:41,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2850 transitions. [2024-11-24 01:36:41,676 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2850 transitions. Word has length 92 [2024-11-24 01:36:41,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:41,677 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2850 transitions. [2024-11-24 01:36:41,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:41,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2850 transitions. [2024-11-24 01:36:41,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 01:36:41,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:41,679 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:36:41,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:36:41,679 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:41,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:41,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1566925479, now seen corresponding path program 1 times [2024-11-24 01:36:41,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:41,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509665953] [2024-11-24 01:36:41,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:41,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:42,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:42,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509665953] [2024-11-24 01:36:42,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509665953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:42,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:42,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:36:42,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118822798] [2024-11-24 01:36:42,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:42,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:36:42,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:42,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:36:42,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:36:42,067 INFO L87 Difference]: Start difference. First operand 1801 states and 2850 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:42,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:42,114 INFO L93 Difference]: Finished difference Result 1809 states and 2859 transitions. [2024-11-24 01:36:42,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:36:42,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 01:36:42,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:42,121 INFO L225 Difference]: With dead ends: 1809 [2024-11-24 01:36:42,121 INFO L226 Difference]: Without dead ends: 1807 [2024-11-24 01:36:42,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:36:42,125 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:42,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6403 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:42,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2024-11-24 01:36:42,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1807. [2024-11-24 01:36:42,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1805 states have (on average 1.5817174515235457) internal successors, (2855), 1806 states have internal predecessors, (2855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2855 transitions. [2024-11-24 01:36:42,172 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2855 transitions. Word has length 93 [2024-11-24 01:36:42,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:42,172 INFO L471 AbstractCegarLoop]: Abstraction has 1807 states and 2855 transitions. [2024-11-24 01:36:42,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2855 transitions. [2024-11-24 01:36:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 01:36:42,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:42,177 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:36:42,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:36:42,177 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:42,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:42,178 INFO L85 PathProgramCache]: Analyzing trace with hash -401487589, now seen corresponding path program 1 times [2024-11-24 01:36:42,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:42,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600749999] [2024-11-24 01:36:42,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:42,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:42,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:42,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:42,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600749999] [2024-11-24 01:36:42,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600749999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:42,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:42,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:36:42,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971473066] [2024-11-24 01:36:42,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:42,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:36:42,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:42,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:36:42,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:42,308 INFO L87 Difference]: Start difference. First operand 1807 states and 2855 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:42,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:42,365 INFO L93 Difference]: Finished difference Result 2261 states and 3567 transitions. [2024-11-24 01:36:42,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:36:42,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-24 01:36:42,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:42,375 INFO L225 Difference]: With dead ends: 2261 [2024-11-24 01:36:42,375 INFO L226 Difference]: Without dead ends: 2026 [2024-11-24 01:36:42,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:42,377 INFO L435 NwaCegarLoop]: 1683 mSDtfsCounter, 1527 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:42,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:42,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2024-11-24 01:36:42,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2024. [2024-11-24 01:36:42,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2024 states, 2022 states have (on average 1.5786350148367954) internal successors, (3192), 2023 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:42,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 3192 transitions. [2024-11-24 01:36:42,435 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 3192 transitions. Word has length 94 [2024-11-24 01:36:42,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:42,436 INFO L471 AbstractCegarLoop]: Abstraction has 2024 states and 3192 transitions. [2024-11-24 01:36:42,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:42,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 3192 transitions. [2024-11-24 01:36:42,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 01:36:42,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:42,437 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:36:42,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:36:42,438 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:42,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:42,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1540581915, now seen corresponding path program 1 times [2024-11-24 01:36:42,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:42,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699570578] [2024-11-24 01:36:42,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:42,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:42,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:42,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:42,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699570578] [2024-11-24 01:36:42,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699570578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:42,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:42,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:36:42,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093709211] [2024-11-24 01:36:42,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:42,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:36:42,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:42,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:36:42,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:42,562 INFO L87 Difference]: Start difference. First operand 2024 states and 3192 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:42,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:42,624 INFO L93 Difference]: Finished difference Result 2896 states and 4550 transitions. [2024-11-24 01:36:42,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:36:42,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-24 01:36:42,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:42,634 INFO L225 Difference]: With dead ends: 2896 [2024-11-24 01:36:42,635 INFO L226 Difference]: Without dead ends: 2444 [2024-11-24 01:36:42,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:42,637 INFO L435 NwaCegarLoop]: 1681 mSDtfsCounter, 1525 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:42,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:42,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2024-11-24 01:36:42,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2442. [2024-11-24 01:36:42,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 2440 states have (on average 1.571311475409836) internal successors, (3834), 2441 states have internal predecessors, (3834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:42,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3834 transitions. [2024-11-24 01:36:42,707 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3834 transitions. Word has length 94 [2024-11-24 01:36:42,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:42,708 INFO L471 AbstractCegarLoop]: Abstraction has 2442 states and 3834 transitions. [2024-11-24 01:36:42,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:42,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3834 transitions. [2024-11-24 01:36:42,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 01:36:42,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:42,710 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:36:42,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:36:42,710 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:42,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:42,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1967352859, now seen corresponding path program 1 times [2024-11-24 01:36:42,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:42,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770700359] [2024-11-24 01:36:42,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:42,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:42,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:42,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770700359] [2024-11-24 01:36:42,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770700359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:42,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:42,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:36:42,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223031236] [2024-11-24 01:36:42,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:42,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:36:42,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:42,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:36:42,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:42,821 INFO L87 Difference]: Start difference. First operand 2442 states and 3834 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:42,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:42,925 INFO L93 Difference]: Finished difference Result 4118 states and 6420 transitions. [2024-11-24 01:36:42,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:36:42,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-24 01:36:42,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:42,937 INFO L225 Difference]: With dead ends: 4118 [2024-11-24 01:36:42,937 INFO L226 Difference]: Without dead ends: 3248 [2024-11-24 01:36:42,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:42,940 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 1521 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:42,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1786 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:42,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2024-11-24 01:36:43,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 3246. [2024-11-24 01:36:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3244 states have (on average 1.557953144266338) internal successors, (5054), 3245 states have internal predecessors, (5054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 5054 transitions. [2024-11-24 01:36:43,044 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 5054 transitions. Word has length 94 [2024-11-24 01:36:43,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:43,044 INFO L471 AbstractCegarLoop]: Abstraction has 3246 states and 5054 transitions. [2024-11-24 01:36:43,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 5054 transitions. [2024-11-24 01:36:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 01:36:43,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:43,047 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:36:43,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:36:43,047 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:43,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:43,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1089352421, now seen corresponding path program 1 times [2024-11-24 01:36:43,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:43,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71342147] [2024-11-24 01:36:43,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:43,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:43,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:43,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71342147] [2024-11-24 01:36:43,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71342147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:43,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:43,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:36:43,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78607096] [2024-11-24 01:36:43,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:43,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:36:43,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:43,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:36:43,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:43,163 INFO L87 Difference]: Start difference. First operand 3246 states and 5054 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:43,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:43,262 INFO L93 Difference]: Finished difference Result 6466 states and 9968 transitions. [2024-11-24 01:36:43,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:36:43,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-24 01:36:43,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:43,288 INFO L225 Difference]: With dead ends: 6466 [2024-11-24 01:36:43,289 INFO L226 Difference]: Without dead ends: 4792 [2024-11-24 01:36:43,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:43,294 INFO L435 NwaCegarLoop]: 1667 mSDtfsCounter, 1519 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:43,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:43,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2024-11-24 01:36:43,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 4790. [2024-11-24 01:36:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4790 states, 4788 states have (on average 1.5384294068504596) internal successors, (7366), 4789 states have internal predecessors, (7366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:43,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4790 states to 4790 states and 7366 transitions. [2024-11-24 01:36:43,461 INFO L78 Accepts]: Start accepts. Automaton has 4790 states and 7366 transitions. Word has length 94 [2024-11-24 01:36:43,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:43,462 INFO L471 AbstractCegarLoop]: Abstraction has 4790 states and 7366 transitions. [2024-11-24 01:36:43,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:43,462 INFO L276 IsEmpty]: Start isEmpty. Operand 4790 states and 7366 transitions. [2024-11-24 01:36:43,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 01:36:43,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:43,463 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:36:43,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:36:43,463 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:43,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:43,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1523888357, now seen corresponding path program 1 times [2024-11-24 01:36:43,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:43,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604506759] [2024-11-24 01:36:43,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:43,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:43,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:43,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604506759] [2024-11-24 01:36:43,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604506759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:43,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:43,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:36:43,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86512004] [2024-11-24 01:36:43,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:43,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:36:43,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:43,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:36:43,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:43,575 INFO L87 Difference]: Start difference. First operand 4790 states and 7366 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:43,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:43,725 INFO L93 Difference]: Finished difference Result 10970 states and 16680 transitions. [2024-11-24 01:36:43,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:36:43,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-24 01:36:43,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:43,749 INFO L225 Difference]: With dead ends: 10970 [2024-11-24 01:36:43,749 INFO L226 Difference]: Without dead ends: 7752 [2024-11-24 01:36:43,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:43,755 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 1515 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:43,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1784 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:43,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7752 states. [2024-11-24 01:36:43,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7752 to 7750. [2024-11-24 01:36:43,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7750 states, 7748 states have (on average 1.5144553433144037) internal successors, (11734), 7749 states have internal predecessors, (11734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:44,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7750 states to 7750 states and 11734 transitions. [2024-11-24 01:36:44,027 INFO L78 Accepts]: Start accepts. Automaton has 7750 states and 11734 transitions. Word has length 94 [2024-11-24 01:36:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:44,028 INFO L471 AbstractCegarLoop]: Abstraction has 7750 states and 11734 transitions. [2024-11-24 01:36:44,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:44,029 INFO L276 IsEmpty]: Start isEmpty. Operand 7750 states and 11734 transitions. [2024-11-24 01:36:44,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 01:36:44,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:44,030 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:36:44,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:36:44,031 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:44,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash 990146075, now seen corresponding path program 1 times [2024-11-24 01:36:44,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:44,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052698930] [2024-11-24 01:36:44,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:44,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:44,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:44,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:44,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052698930] [2024-11-24 01:36:44,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052698930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:44,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:44,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:36:44,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263297252] [2024-11-24 01:36:44,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:44,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:36:44,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:44,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:36:44,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:44,134 INFO L87 Difference]: Start difference. First operand 7750 states and 11734 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:44,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:44,386 INFO L93 Difference]: Finished difference Result 19594 states and 29336 transitions. [2024-11-24 01:36:44,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:36:44,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-24 01:36:44,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:44,433 INFO L225 Difference]: With dead ends: 19594 [2024-11-24 01:36:44,433 INFO L226 Difference]: Without dead ends: 13416 [2024-11-24 01:36:44,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:44,445 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 1517 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:44,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:44,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13416 states. [2024-11-24 01:36:44,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13416 to 13414. [2024-11-24 01:36:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13414 states, 13412 states have (on average 1.4880703847300925) internal successors, (19958), 13413 states have internal predecessors, (19958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:45,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13414 states to 13414 states and 19958 transitions. [2024-11-24 01:36:45,021 INFO L78 Accepts]: Start accepts. Automaton has 13414 states and 19958 transitions. Word has length 94 [2024-11-24 01:36:45,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:45,021 INFO L471 AbstractCegarLoop]: Abstraction has 13414 states and 19958 transitions. [2024-11-24 01:36:45,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:45,022 INFO L276 IsEmpty]: Start isEmpty. Operand 13414 states and 19958 transitions. [2024-11-24 01:36:45,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 01:36:45,023 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:45,023 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:36:45,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:36:45,023 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:45,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:45,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1703496475, now seen corresponding path program 1 times [2024-11-24 01:36:45,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:45,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33244112] [2024-11-24 01:36:45,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:45,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:45,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33244112] [2024-11-24 01:36:45,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33244112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:45,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:45,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:36:45,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095391185] [2024-11-24 01:36:45,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:45,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:36:45,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:45,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:36:45,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:45,146 INFO L87 Difference]: Start difference. First operand 13414 states and 19958 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:45,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:45,572 INFO L93 Difference]: Finished difference Result 36074 states and 53112 transitions. [2024-11-24 01:36:45,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:36:45,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-24 01:36:45,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:45,641 INFO L225 Difference]: With dead ends: 36074 [2024-11-24 01:36:45,641 INFO L226 Difference]: Without dead ends: 24232 [2024-11-24 01:36:45,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:45,658 INFO L435 NwaCegarLoop]: 1679 mSDtfsCounter, 1523 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:45,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:45,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24232 states. [2024-11-24 01:36:46,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24232 to 24230. [2024-11-24 01:36:46,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24230 states, 24228 states have (on average 1.4603764239722634) internal successors, (35382), 24229 states have internal predecessors, (35382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:46,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24230 states to 24230 states and 35382 transitions. [2024-11-24 01:36:46,641 INFO L78 Accepts]: Start accepts. Automaton has 24230 states and 35382 transitions. Word has length 94 [2024-11-24 01:36:46,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:46,642 INFO L471 AbstractCegarLoop]: Abstraction has 24230 states and 35382 transitions. [2024-11-24 01:36:46,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:46,644 INFO L276 IsEmpty]: Start isEmpty. Operand 24230 states and 35382 transitions. [2024-11-24 01:36:46,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 01:36:46,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:46,645 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] [2024-11-24 01:36:46,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:36:46,646 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:46,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:46,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1087415530, now seen corresponding path program 1 times [2024-11-24 01:36:46,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:46,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820260769] [2024-11-24 01:36:46,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:46,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:46,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:46,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:46,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820260769] [2024-11-24 01:36:46,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820260769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:46,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:46,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:36:46,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951796076] [2024-11-24 01:36:46,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:46,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:36:46,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:46,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:36:46,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:46,763 INFO L87 Difference]: Start difference. First operand 24230 states and 35382 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:47,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:47,569 INFO L93 Difference]: Finished difference Result 47789 states and 69948 transitions. [2024-11-24 01:36:47,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:36:47,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2024-11-24 01:36:47,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:47,672 INFO L225 Difference]: With dead ends: 47789 [2024-11-24 01:36:47,672 INFO L226 Difference]: Without dead ends: 35242 [2024-11-24 01:36:47,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:36:47,695 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1526 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:47,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:36:47,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35242 states. [2024-11-24 01:36:48,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35242 to 35240. [2024-11-24 01:36:48,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35240 states, 35238 states have (on average 1.45093365117203) internal successors, (51128), 35239 states have internal predecessors, (51128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:49,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35240 states to 35240 states and 51128 transitions. [2024-11-24 01:36:49,039 INFO L78 Accepts]: Start accepts. Automaton has 35240 states and 51128 transitions. Word has length 96 [2024-11-24 01:36:49,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:49,039 INFO L471 AbstractCegarLoop]: Abstraction has 35240 states and 51128 transitions. [2024-11-24 01:36:49,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:49,040 INFO L276 IsEmpty]: Start isEmpty. Operand 35240 states and 51128 transitions. [2024-11-24 01:36:49,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 01:36:49,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:49,049 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:36:49,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:36:49,049 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:49,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash 54573310, now seen corresponding path program 1 times [2024-11-24 01:36:49,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:49,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497285234] [2024-11-24 01:36:49,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:49,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:49,517 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 01:36:49,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:49,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497285234] [2024-11-24 01:36:49,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497285234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:49,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:49,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:36:49,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853636939] [2024-11-24 01:36:49,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:49,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:36:49,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:49,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:36:49,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:36:49,521 INFO L87 Difference]: Start difference. First operand 35240 states and 51128 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:54,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:54,594 INFO L93 Difference]: Finished difference Result 311354 states and 449729 transitions. [2024-11-24 01:36:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:36:54,594 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 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 119 [2024-11-24 01:36:54,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:55,492 INFO L225 Difference]: With dead ends: 311354 [2024-11-24 01:36:55,492 INFO L226 Difference]: Without dead ends: 277688 [2024-11-24 01:36:55,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:36:55,557 INFO L435 NwaCegarLoop]: 1706 mSDtfsCounter, 11840 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11840 SdHoareTripleChecker+Valid, 4973 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:55,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11840 Valid, 4973 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:36:55,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277688 states. [2024-11-24 01:36:59,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277688 to 68904. [2024-11-24 01:36:59,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68904 states, 68902 states have (on average 1.4423964471278048) internal successors, (99384), 68903 states have internal predecessors, (99384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:59,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68904 states to 68904 states and 99384 transitions. [2024-11-24 01:36:59,503 INFO L78 Accepts]: Start accepts. Automaton has 68904 states and 99384 transitions. Word has length 119 [2024-11-24 01:36:59,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:59,504 INFO L471 AbstractCegarLoop]: Abstraction has 68904 states and 99384 transitions. [2024-11-24 01:36:59,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:36:59,504 INFO L276 IsEmpty]: Start isEmpty. Operand 68904 states and 99384 transitions. [2024-11-24 01:36:59,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 01:36:59,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:59,514 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:36:59,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:36:59,515 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:59,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:59,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1996642814, now seen corresponding path program 1 times [2024-11-24 01:36:59,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:59,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351010242] [2024-11-24 01:36:59,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:59,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:37:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 01:37:00,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:37:00,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351010242] [2024-11-24 01:37:00,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351010242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:37:00,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:37:00,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:37:00,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704123071] [2024-11-24 01:37:00,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:37:00,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:37:00,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:37:00,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:37:00,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:37:00,023 INFO L87 Difference]: Start difference. First operand 68904 states and 99384 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:37:07,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:37:07,067 INFO L93 Difference]: Finished difference Result 345018 states and 497985 transitions. [2024-11-24 01:37:07,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:37:07,068 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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 119 [2024-11-24 01:37:07,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:37:07,535 INFO L225 Difference]: With dead ends: 345018 [2024-11-24 01:37:07,535 INFO L226 Difference]: Without dead ends: 311352 [2024-11-24 01:37:07,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:37:07,617 INFO L435 NwaCegarLoop]: 1703 mSDtfsCounter, 11882 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11882 SdHoareTripleChecker+Valid, 4839 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:37:07,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11882 Valid, 4839 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:37:07,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311352 states. [2024-11-24 01:37:13,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311352 to 119464. [2024-11-24 01:37:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119464 states, 119462 states have (on average 1.4351676683799033) internal successors, (171448), 119463 states have internal predecessors, (171448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:37:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119464 states to 119464 states and 171448 transitions. [2024-11-24 01:37:14,183 INFO L78 Accepts]: Start accepts. Automaton has 119464 states and 171448 transitions. Word has length 119 [2024-11-24 01:37:14,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:37:14,183 INFO L471 AbstractCegarLoop]: Abstraction has 119464 states and 171448 transitions. [2024-11-24 01:37:14,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:37:14,184 INFO L276 IsEmpty]: Start isEmpty. Operand 119464 states and 171448 transitions. [2024-11-24 01:37:14,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 01:37:14,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:37:14,197 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:37:14,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:37:14,197 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:37:14,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:37:14,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1871553538, now seen corresponding path program 1 times [2024-11-24 01:37:14,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:37:14,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102677523] [2024-11-24 01:37:14,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:37:14,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:37:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:37:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 01:37:14,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:37:14,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102677523] [2024-11-24 01:37:14,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102677523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:37:14,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:37:14,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:37:14,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377657912] [2024-11-24 01:37:14,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:37:14,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:37:14,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:37:14,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:37:14,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:37:14,977 INFO L87 Difference]: Start difference. First operand 119464 states and 171448 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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)