./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/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_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/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_b8ad3bb6-45c9-4b14-a4e4-34673d649534/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 724229db6d9b6e3f76c3763f8c47245763087e9314340a5d35172f234ffee2c5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:59:21,361 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:59:21,457 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:59:21,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:59:21,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:59:21,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:59:21,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:59:21,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:59:21,504 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:59:21,505 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:59:21,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:59:21,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:59:21,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:59:21,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:59:21,507 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:59:21,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:59:21,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:59:21,507 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:59:21,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:59:21,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:59:21,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:59:21,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:59:21,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:59:21,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:59:21,508 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:59:21,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:59:21,508 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:59:21,509 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:59:21,509 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:59:21,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:59:21,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:59:21,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:59:21,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:59:21,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:59:21,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:59:21,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:59:21,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:59:21,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:59:21,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:59:21,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:59:21,511 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:59:21,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:59:21,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:59:21,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:59:21,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:59:21,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:59:21,512 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:59:21,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:59:21,512 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_b8ad3bb6-45c9-4b14-a4e4-34673d649534/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 -> 724229db6d9b6e3f76c3763f8c47245763087e9314340a5d35172f234ffee2c5 [2024-11-24 00:59:21,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:59:21,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:59:21,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:59:21,812 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:59:21,812 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:59:21,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-24 00:59:24,839 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/data/e01cff387/15ef3f7d6df043daaef54b7dab127e6b/FLAG3754b2b4a [2024-11-24 00:59:25,568 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:59:25,569 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-24 00:59:25,619 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/data/e01cff387/15ef3f7d6df043daaef54b7dab127e6b/FLAG3754b2b4a [2024-11-24 00:59:25,642 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/data/e01cff387/15ef3f7d6df043daaef54b7dab127e6b [2024-11-24 00:59:25,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:59:25,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:59:25,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:59:25,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:59:25,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:59:25,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:59:25" (1/1) ... [2024-11-24 00:59:25,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b530bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:25, skipping insertion in model container [2024-11-24 00:59:25,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:59:25" (1/1) ... [2024-11-24 00:59:25,807 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:59:26,185 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_b8ad3bb6-45c9-4b14-a4e4-34673d649534/sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label05.c[8712,8725] [2024-11-24 00:59:26,265 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_b8ad3bb6-45c9-4b14-a4e4-34673d649534/sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label05.c[15648,15661] [2024-11-24 00:59:27,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:59:27,134 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:59:27,188 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_b8ad3bb6-45c9-4b14-a4e4-34673d649534/sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label05.c[8712,8725] [2024-11-24 00:59:27,216 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_b8ad3bb6-45c9-4b14-a4e4-34673d649534/sv-benchmarks/c/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label05.c[15648,15661] [2024-11-24 00:59:27,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:59:27,803 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:59:27,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27 WrapperNode [2024-11-24 00:59:27,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:59:27,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:59:27,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:59:27,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:59:27,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:27,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,277 INFO L138 Inliner]: procedures = 36, calls = 21, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 5037 [2024-11-24 00:59:28,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:59:28,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:59:28,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:59:28,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:59:28,287 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,392 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,623 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 00:59:28,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,826 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,843 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:59:28,981 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:59:28,981 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:59:28,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:59:28,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (1/1) ... [2024-11-24 00:59:28,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:59:29,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:59:29,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:59:29,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:59:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:59:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:59:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:59:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:59:29,188 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:59:29,190 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:59:35,695 INFO L? ?]: Removed 739 outVars from TransFormulas that were not future-live. [2024-11-24 00:59:35,696 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:59:35,743 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:59:35,743 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 00:59:35,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:59:35 BoogieIcfgContainer [2024-11-24 00:59:35,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:59:35,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:59:35,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:59:35,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:59:35,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:59:25" (1/3) ... [2024-11-24 00:59:35,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db198fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:59:35, skipping insertion in model container [2024-11-24 00:59:35,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:27" (2/3) ... [2024-11-24 00:59:35,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db198fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:59:35, skipping insertion in model container [2024-11-24 00:59:35,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:59:35" (3/3) ... [2024-11-24 00:59:35,757 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-24 00:59:35,774 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:59:35,777 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label05.c that has 1 procedures, 887 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-24 00:59:35,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:59:35,901 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;@95494ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:59:35,901 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 00:59:35,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 887 states, 884 states have (on average 1.9049773755656108) internal successors, (1684), 886 states have internal predecessors, (1684), 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 00:59:35,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-24 00:59:35,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:35,921 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] [2024-11-24 00:59:35,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:35,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:35,930 INFO L85 PathProgramCache]: Analyzing trace with hash 593970293, now seen corresponding path program 1 times [2024-11-24 00:59:35,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:35,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712518469] [2024-11-24 00:59:35,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:35,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:36,227 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 00:59:36,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:36,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712518469] [2024-11-24 00:59:36,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712518469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:36,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:36,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:59:36,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819966088] [2024-11-24 00:59:36,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:36,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:59:36,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:36,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:59:36,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:59:36,265 INFO L87 Difference]: Start difference. First operand has 887 states, 884 states have (on average 1.9049773755656108) internal successors, (1684), 886 states have internal predecessors, (1684), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 00:59:36,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:36,373 INFO L93 Difference]: Finished difference Result 1743 states and 3312 transitions. [2024-11-24 00:59:36,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:59:36,375 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2024-11-24 00:59:36,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:36,389 INFO L225 Difference]: With dead ends: 1743 [2024-11-24 00:59:36,389 INFO L226 Difference]: Without dead ends: 821 [2024-11-24 00:59:36,394 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 00:59:36,397 INFO L435 NwaCegarLoop]: 1615 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, 1615 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 00:59:36,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:36,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-24 00:59:36,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2024-11-24 00:59:36,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 819 states have (on average 1.8937728937728937) internal successors, (1551), 820 states have internal predecessors, (1551), 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 00:59:36,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1551 transitions. [2024-11-24 00:59:36,506 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1551 transitions. Word has length 22 [2024-11-24 00:59:36,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:36,506 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1551 transitions. [2024-11-24 00:59:36,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 00:59:36,507 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1551 transitions. [2024-11-24 00:59:36,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-24 00:59:36,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:36,508 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] [2024-11-24 00:59:36,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:59:36,508 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:36,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:36,509 INFO L85 PathProgramCache]: Analyzing trace with hash -427098061, now seen corresponding path program 1 times [2024-11-24 00:59:36,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:36,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727210537] [2024-11-24 00:59:36,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:36,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:36,859 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 00:59:36,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:36,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727210537] [2024-11-24 00:59:36,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727210537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:36,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:36,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:59:36,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550083513] [2024-11-24 00:59:36,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:36,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:59:36,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:36,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:59:36,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:59:36,862 INFO L87 Difference]: Start difference. First operand 821 states and 1551 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 00:59:37,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:37,007 INFO L93 Difference]: Finished difference Result 863 states and 1615 transitions. [2024-11-24 00:59:37,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:59:37,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2024-11-24 00:59:37,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:37,016 INFO L225 Difference]: With dead ends: 863 [2024-11-24 00:59:37,016 INFO L226 Difference]: Without dead ends: 821 [2024-11-24 00:59:37,017 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 00:59:37,020 INFO L435 NwaCegarLoop]: 1549 mSDtfsCounter, 0 mSDsluCounter, 4619 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6168 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:37,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6168 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:59:37,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-24 00:59:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2024-11-24 00:59:37,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 819 states have (on average 1.8656898656898657) internal successors, (1528), 820 states have internal predecessors, (1528), 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 00:59:37,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1528 transitions. [2024-11-24 00:59:37,066 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1528 transitions. Word has length 22 [2024-11-24 00:59:37,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:37,066 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1528 transitions. [2024-11-24 00:59:37,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 00:59:37,066 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1528 transitions. [2024-11-24 00:59:37,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 00:59:37,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:37,070 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] [2024-11-24 00:59:37,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:59:37,070 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:37,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:37,072 INFO L85 PathProgramCache]: Analyzing trace with hash 3301806, now seen corresponding path program 1 times [2024-11-24 00:59:37,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:37,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296748517] [2024-11-24 00:59:37,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:37,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:37,482 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 00:59:37,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:37,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296748517] [2024-11-24 00:59:37,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296748517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:37,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:37,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:59:37,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961370597] [2024-11-24 00:59:37,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:37,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:59:37,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:37,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:59:37,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:59:37,484 INFO L87 Difference]: Start difference. First operand 821 states and 1528 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 00:59:37,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:37,765 INFO L93 Difference]: Finished difference Result 1125 states and 2008 transitions. [2024-11-24 00:59:37,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:59:37,768 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2024-11-24 00:59:37,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:37,774 INFO L225 Difference]: With dead ends: 1125 [2024-11-24 00:59:37,776 INFO L226 Difference]: Without dead ends: 1087 [2024-11-24 00:59:37,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:59:37,778 INFO L435 NwaCegarLoop]: 1522 mSDtfsCounter, 6285 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6285 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:37,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6285 Valid, 2135 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:59:37,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-24 00:59:37,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 857. [2024-11-24 00:59:37,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 855 states have (on average 1.8538011695906433) internal successors, (1585), 856 states have internal predecessors, (1585), 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 00:59:37,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1585 transitions. [2024-11-24 00:59:37,817 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1585 transitions. Word has length 44 [2024-11-24 00:59:37,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:37,818 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1585 transitions. [2024-11-24 00:59:37,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 00:59:37,818 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1585 transitions. [2024-11-24 00:59:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-24 00:59:37,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:37,823 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] [2024-11-24 00:59:37,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:59:37,823 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:37,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1757336638, now seen corresponding path program 1 times [2024-11-24 00:59:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:37,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250698929] [2024-11-24 00:59:37,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:37,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:37,976 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 00:59:37,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:37,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250698929] [2024-11-24 00:59:37,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250698929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:37,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:37,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:59:37,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763228307] [2024-11-24 00:59:37,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:37,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:59:37,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:37,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:59:37,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:59:37,978 INFO L87 Difference]: Start difference. First operand 857 states and 1585 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 00:59:38,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:38,030 INFO L93 Difference]: Finished difference Result 994 states and 1800 transitions. [2024-11-24 00:59:38,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:59:38,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2024-11-24 00:59:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:38,035 INFO L225 Difference]: With dead ends: 994 [2024-11-24 00:59:38,035 INFO L226 Difference]: Without dead ends: 920 [2024-11-24 00:59:38,036 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 00:59:38,037 INFO L435 NwaCegarLoop]: 1524 mSDtfsCounter, 1476 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1577 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 00:59:38,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1577 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:38,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-11-24 00:59:38,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 916. [2024-11-24 00:59:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 914 states have (on average 1.8326039387308535) internal successors, (1675), 915 states have internal predecessors, (1675), 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 00:59:38,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1675 transitions. [2024-11-24 00:59:38,076 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1675 transitions. Word has length 46 [2024-11-24 00:59:38,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:38,076 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1675 transitions. [2024-11-24 00:59:38,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 00:59:38,077 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1675 transitions. [2024-11-24 00:59:38,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-24 00:59:38,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:38,080 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] [2024-11-24 00:59:38,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:59:38,081 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:38,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:38,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1823830150, now seen corresponding path program 1 times [2024-11-24 00:59:38,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:38,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708268334] [2024-11-24 00:59:38,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:38,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:38,443 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 00:59:38,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:38,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708268334] [2024-11-24 00:59:38,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708268334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:38,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:38,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:59:38,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369774107] [2024-11-24 00:59:38,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:38,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:59:38,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:38,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:59:38,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:59:38,446 INFO L87 Difference]: Start difference. First operand 916 states and 1675 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 00:59:38,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:38,626 INFO L93 Difference]: Finished difference Result 1051 states and 1883 transitions. [2024-11-24 00:59:38,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:59:38,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2024-11-24 00:59:38,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:38,632 INFO L225 Difference]: With dead ends: 1051 [2024-11-24 00:59:38,633 INFO L226 Difference]: Without dead ends: 918 [2024-11-24 00:59:38,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:59:38,636 INFO L435 NwaCegarLoop]: 1522 mSDtfsCounter, 1493 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:38,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1748 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:59:38,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2024-11-24 00:59:38,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 916. [2024-11-24 00:59:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 914 states have (on average 1.8304157549234135) internal successors, (1673), 915 states have internal predecessors, (1673), 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 00:59:38,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1673 transitions. [2024-11-24 00:59:38,668 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1673 transitions. Word has length 46 [2024-11-24 00:59:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:38,668 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1673 transitions. [2024-11-24 00:59:38,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 00:59:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1673 transitions. [2024-11-24 00:59:38,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-24 00:59:38,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:38,670 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] [2024-11-24 00:59:38,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:59:38,670 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:38,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:38,673 INFO L85 PathProgramCache]: Analyzing trace with hash 289436656, now seen corresponding path program 1 times [2024-11-24 00:59:38,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:38,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029130904] [2024-11-24 00:59:38,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:38,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:38,970 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 00:59:38,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:38,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029130904] [2024-11-24 00:59:38,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029130904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:38,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:38,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:59:38,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578002381] [2024-11-24 00:59:38,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:38,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:59:38,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:38,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:59:38,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:59:38,974 INFO L87 Difference]: Start difference. First operand 916 states and 1673 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 00:59:39,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:39,040 INFO L93 Difference]: Finished difference Result 924 states and 1682 transitions. [2024-11-24 00:59:39,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:59:39,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 47 [2024-11-24 00:59:39,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:39,049 INFO L225 Difference]: With dead ends: 924 [2024-11-24 00:59:39,050 INFO L226 Difference]: Without dead ends: 922 [2024-11-24 00:59:39,050 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 00:59:39,051 INFO L435 NwaCegarLoop]: 1525 mSDtfsCounter, 0 mSDsluCounter, 4566 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6091 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 00:59:39,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6091 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-24 00:59:39,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2024-11-24 00:59:39,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 920 states have (on average 1.8239130434782609) internal successors, (1678), 921 states have internal predecessors, (1678), 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 00:59:39,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1678 transitions. [2024-11-24 00:59:39,085 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1678 transitions. Word has length 47 [2024-11-24 00:59:39,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:39,086 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1678 transitions. [2024-11-24 00:59:39,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 00:59:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1678 transitions. [2024-11-24 00:59:39,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-24 00:59:39,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:39,088 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] [2024-11-24 00:59:39,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:59:39,089 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:39,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:39,090 INFO L85 PathProgramCache]: Analyzing trace with hash -2036800602, now seen corresponding path program 1 times [2024-11-24 00:59:39,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:39,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071383266] [2024-11-24 00:59:39,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:39,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:39,301 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 00:59:39,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:39,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071383266] [2024-11-24 00:59:39,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071383266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:39,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:39,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:59:39,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507806133] [2024-11-24 00:59:39,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:39,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:59:39,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:39,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:59:39,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:59:39,303 INFO L87 Difference]: Start difference. First operand 922 states and 1678 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 00:59:39,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:39,350 INFO L93 Difference]: Finished difference Result 1184 states and 2070 transitions. [2024-11-24 00:59:39,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:59:39,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2024-11-24 00:59:39,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:39,356 INFO L225 Difference]: With dead ends: 1184 [2024-11-24 00:59:39,356 INFO L226 Difference]: Without dead ends: 1045 [2024-11-24 00:59:39,357 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 00:59:39,358 INFO L435 NwaCegarLoop]: 1565 mSDtfsCounter, 1487 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1630 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 00:59:39,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 1630 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-24 00:59:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1043. [2024-11-24 00:59:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1041 states have (on average 1.781940441882805) internal successors, (1855), 1042 states have internal predecessors, (1855), 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 00:59:39,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1855 transitions. [2024-11-24 00:59:39,395 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1855 transitions. Word has length 48 [2024-11-24 00:59:39,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:39,396 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1855 transitions. [2024-11-24 00:59:39,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 00:59:39,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1855 transitions. [2024-11-24 00:59:39,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-24 00:59:39,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:39,397 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] [2024-11-24 00:59:39,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:59:39,398 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:39,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:39,398 INFO L85 PathProgramCache]: Analyzing trace with hash 42697894, now seen corresponding path program 1 times [2024-11-24 00:59:39,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:39,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260673705] [2024-11-24 00:59:39,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:39,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:39,520 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 00:59:39,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:39,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260673705] [2024-11-24 00:59:39,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260673705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:39,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:39,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:59:39,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109610540] [2024-11-24 00:59:39,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:39,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:59:39,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:39,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:59:39,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:59:39,526 INFO L87 Difference]: Start difference. First operand 1043 states and 1855 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 00:59:39,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:39,607 INFO L93 Difference]: Finished difference Result 1531 states and 2573 transitions. [2024-11-24 00:59:39,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:59:39,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2024-11-24 00:59:39,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:39,613 INFO L225 Difference]: With dead ends: 1531 [2024-11-24 00:59:39,613 INFO L226 Difference]: Without dead ends: 1271 [2024-11-24 00:59:39,614 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 00:59:39,615 INFO L435 NwaCegarLoop]: 1563 mSDtfsCounter, 1485 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1632 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 00:59:39,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1632 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:39,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-11-24 00:59:39,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1269. [2024-11-24 00:59:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1267 states have (on average 1.718232044198895) internal successors, (2177), 1268 states have internal predecessors, (2177), 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 00:59:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 2177 transitions. [2024-11-24 00:59:39,687 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 2177 transitions. Word has length 48 [2024-11-24 00:59:39,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:39,687 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 2177 transitions. [2024-11-24 00:59:39,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 00:59:39,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 2177 transitions. [2024-11-24 00:59:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-24 00:59:39,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:39,691 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] [2024-11-24 00:59:39,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:59:39,692 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:39,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:39,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1823630758, now seen corresponding path program 1 times [2024-11-24 00:59:39,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:39,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213871149] [2024-11-24 00:59:39,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:39,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:39,819 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 00:59:39,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:39,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213871149] [2024-11-24 00:59:39,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213871149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:39,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:39,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:59:39,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117106058] [2024-11-24 00:59:39,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:39,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:59:39,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:39,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:59:39,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:59:39,821 INFO L87 Difference]: Start difference. First operand 1269 states and 2177 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 00:59:39,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:39,869 INFO L93 Difference]: Finished difference Result 2177 states and 3483 transitions. [2024-11-24 00:59:39,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:59:39,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2024-11-24 00:59:39,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:39,876 INFO L225 Difference]: With dead ends: 2177 [2024-11-24 00:59:39,877 INFO L226 Difference]: Without dead ends: 1691 [2024-11-24 00:59:39,878 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 00:59:39,878 INFO L435 NwaCegarLoop]: 1561 mSDtfsCounter, 1483 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1634 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 00:59:39,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1634 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:39,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2024-11-24 00:59:39,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1689. [2024-11-24 00:59:39,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1687 states have (on average 1.6342620035566093) internal successors, (2757), 1688 states have internal predecessors, (2757), 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 00:59:39,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2757 transitions. [2024-11-24 00:59:39,934 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2757 transitions. Word has length 48 [2024-11-24 00:59:39,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:39,935 INFO L471 AbstractCegarLoop]: Abstraction has 1689 states and 2757 transitions. [2024-11-24 00:59:39,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 00:59:39,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2757 transitions. [2024-11-24 00:59:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-24 00:59:39,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:39,936 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] [2024-11-24 00:59:39,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:59:39,937 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:39,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash 246335073, now seen corresponding path program 1 times [2024-11-24 00:59:39,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:39,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563229739] [2024-11-24 00:59:39,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:39,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:40,027 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 00:59:40,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:40,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563229739] [2024-11-24 00:59:40,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563229739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:40,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:40,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:59:40,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367322475] [2024-11-24 00:59:40,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:40,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:59:40,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:40,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:59:40,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:59:40,030 INFO L87 Difference]: Start difference. First operand 1689 states and 2757 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 00:59:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:40,092 INFO L93 Difference]: Finished difference Result 2656 states and 4155 transitions. [2024-11-24 00:59:40,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:59:40,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2024-11-24 00:59:40,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:40,101 INFO L225 Difference]: With dead ends: 2656 [2024-11-24 00:59:40,101 INFO L226 Difference]: Without dead ends: 2125 [2024-11-24 00:59:40,102 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 00:59:40,104 INFO L435 NwaCegarLoop]: 1570 mSDtfsCounter, 1486 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1631 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 00:59:40,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1631 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:40,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2024-11-24 00:59:40,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 2123. [2024-11-24 00:59:40,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 2121 states have (on average 1.5836869401225837) internal successors, (3359), 2122 states have internal predecessors, (3359), 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 00:59:40,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 3359 transitions. [2024-11-24 00:59:40,176 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 3359 transitions. Word has length 50 [2024-11-24 00:59:40,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:40,177 INFO L471 AbstractCegarLoop]: Abstraction has 2123 states and 3359 transitions. [2024-11-24 00:59:40,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 00:59:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 3359 transitions. [2024-11-24 00:59:40,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:59:40,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:40,178 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:59:40,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:59:40,179 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:40,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:40,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1981431461, now seen corresponding path program 1 times [2024-11-24 00:59:40,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:40,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888382184] [2024-11-24 00:59:40,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:40,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:40,384 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 00:59:40,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:40,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888382184] [2024-11-24 00:59:40,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888382184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:40,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:40,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:59:40,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965186156] [2024-11-24 00:59:40,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:40,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:59:40,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:40,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:59:40,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:59:40,387 INFO L87 Difference]: Start difference. First operand 2123 states and 3359 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:59:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:48,636 INFO L93 Difference]: Finished difference Result 4378 states and 7668 transitions. [2024-11-24 00:59:48,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:59:48,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-24 00:59:48,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:48,650 INFO L225 Difference]: With dead ends: 4378 [2024-11-24 00:59:48,650 INFO L226 Difference]: Without dead ends: 3625 [2024-11-24 00:59:48,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:59:48,653 INFO L435 NwaCegarLoop]: 764 mSDtfsCounter, 2371 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:48,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2371 Valid, 782 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-24 00:59:48,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3625 states. [2024-11-24 00:59:48,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3625 to 3625. [2024-11-24 00:59:48,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3625 states, 3623 states have (on average 1.5106265525807343) internal successors, (5473), 3624 states have internal predecessors, (5473), 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 00:59:48,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5473 transitions. [2024-11-24 00:59:48,767 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5473 transitions. Word has length 60 [2024-11-24 00:59:48,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:48,768 INFO L471 AbstractCegarLoop]: Abstraction has 3625 states and 5473 transitions. [2024-11-24 00:59:48,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:59:48,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5473 transitions. [2024-11-24 00:59:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-24 00:59:48,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:48,770 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:59:48,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:59:48,770 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:48,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:48,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1523853909, now seen corresponding path program 1 times [2024-11-24 00:59:48,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:48,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277535731] [2024-11-24 00:59:48,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:48,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:49,028 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:59:49,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:49,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277535731] [2024-11-24 00:59:49,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277535731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:49,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:49,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:59:49,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326464137] [2024-11-24 00:59:49,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:49,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:59:49,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:49,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:59:49,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:59:49,031 INFO L87 Difference]: Start difference. First operand 3625 states and 5473 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 00:59:49,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:49,282 INFO L93 Difference]: Finished difference Result 9275 states and 13430 transitions. [2024-11-24 00:59:49,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:59:49,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 65 [2024-11-24 00:59:49,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:49,312 INFO L225 Difference]: With dead ends: 9275 [2024-11-24 00:59:49,312 INFO L226 Difference]: Without dead ends: 7937 [2024-11-24 00:59:49,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:59:49,316 INFO L435 NwaCegarLoop]: 1582 mSDtfsCounter, 4667 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4667 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:49,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4667 Valid, 3350 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:59:49,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7937 states. [2024-11-24 00:59:49,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7937 to 4961. [2024-11-24 00:59:49,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4961 states, 4959 states have (on average 1.4795321637426901) internal successors, (7337), 4960 states have internal predecessors, (7337), 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 00:59:49,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4961 states to 4961 states and 7337 transitions. [2024-11-24 00:59:49,552 INFO L78 Accepts]: Start accepts. Automaton has 4961 states and 7337 transitions. Word has length 65 [2024-11-24 00:59:49,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:49,553 INFO L471 AbstractCegarLoop]: Abstraction has 4961 states and 7337 transitions. [2024-11-24 00:59:49,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 00:59:49,553 INFO L276 IsEmpty]: Start isEmpty. Operand 4961 states and 7337 transitions. [2024-11-24 00:59:49,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-24 00:59:49,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:49,554 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:59:49,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:59:49,555 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:49,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:49,555 INFO L85 PathProgramCache]: Analyzing trace with hash 555644587, now seen corresponding path program 1 times [2024-11-24 00:59:49,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:49,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365770579] [2024-11-24 00:59:49,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:49,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:59:49,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:49,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365770579] [2024-11-24 00:59:49,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365770579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:49,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:49,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:59:49,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90257604] [2024-11-24 00:59:49,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:49,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:59:49,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:49,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:59:49,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:59:49,724 INFO L87 Difference]: Start difference. First operand 4961 states and 7337 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:59:50,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:50,028 INFO L93 Difference]: Finished difference Result 10611 states and 15294 transitions. [2024-11-24 00:59:50,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:59:50,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-24 00:59:50,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:50,074 INFO L225 Difference]: With dead ends: 10611 [2024-11-24 00:59:50,074 INFO L226 Difference]: Without dead ends: 9273 [2024-11-24 00:59:50,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:59:50,080 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 4692 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4692 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:50,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4692 Valid, 3303 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:59:50,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2024-11-24 00:59:50,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 6969. [2024-11-24 00:59:50,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6969 states, 6967 states have (on average 1.451557341753983) internal successors, (10113), 6968 states have internal predecessors, (10113), 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 00:59:50,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6969 states to 6969 states and 10113 transitions. [2024-11-24 00:59:50,424 INFO L78 Accepts]: Start accepts. Automaton has 6969 states and 10113 transitions. Word has length 65 [2024-11-24 00:59:50,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:50,424 INFO L471 AbstractCegarLoop]: Abstraction has 6969 states and 10113 transitions. [2024-11-24 00:59:50,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:59:50,425 INFO L276 IsEmpty]: Start isEmpty. Operand 6969 states and 10113 transitions. [2024-11-24 00:59:50,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-24 00:59:50,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:50,430 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:59:50,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:59:50,431 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:50,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:50,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1958389845, now seen corresponding path program 1 times [2024-11-24 00:59:50,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:50,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064583803] [2024-11-24 00:59:50,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:50,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:59:50,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064583803] [2024-11-24 00:59:50,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064583803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:50,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:50,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:59:50,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954759094] [2024-11-24 00:59:50,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:50,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:59:50,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:50,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:59:50,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:59:50,610 INFO L87 Difference]: Start difference. First operand 6969 states and 10113 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 00:59:50,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:50,934 INFO L93 Difference]: Finished difference Result 11947 states and 17158 transitions. [2024-11-24 00:59:50,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:59:50,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 65 [2024-11-24 00:59:50,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:50,968 INFO L225 Difference]: With dead ends: 11947 [2024-11-24 00:59:50,968 INFO L226 Difference]: Without dead ends: 10609 [2024-11-24 00:59:50,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:59:50,973 INFO L435 NwaCegarLoop]: 1581 mSDtfsCounter, 4673 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4673 SdHoareTripleChecker+Valid, 3337 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:50,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4673 Valid, 3337 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:59:50,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10609 states. [2024-11-24 00:59:51,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10609 to 8305. [2024-11-24 00:59:51,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8305 states, 8303 states have (on average 1.4424906660243286) internal successors, (11977), 8304 states have internal predecessors, (11977), 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 00:59:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8305 states to 8305 states and 11977 transitions. [2024-11-24 00:59:51,372 INFO L78 Accepts]: Start accepts. Automaton has 8305 states and 11977 transitions. Word has length 65 [2024-11-24 00:59:51,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:51,372 INFO L471 AbstractCegarLoop]: Abstraction has 8305 states and 11977 transitions. [2024-11-24 00:59:51,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 00:59:51,373 INFO L276 IsEmpty]: Start isEmpty. Operand 8305 states and 11977 transitions. [2024-11-24 00:59:51,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:59:51,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:51,374 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:59:51,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:59:51,375 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:51,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:51,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1188964029, now seen corresponding path program 1 times [2024-11-24 00:59:51,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:51,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067005317] [2024-11-24 00:59:51,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:51,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:59:51,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:51,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067005317] [2024-11-24 00:59:51,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067005317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:51,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:51,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:59:51,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701543514] [2024-11-24 00:59:51,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:51,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:59:51,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:51,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:59:51,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:59:51,616 INFO L87 Difference]: Start difference. First operand 8305 states and 11977 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 00:59:51,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:51,834 INFO L93 Difference]: Finished difference Result 12647 states and 18118 transitions. [2024-11-24 00:59:51,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:59:51,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2024-11-24 00:59:51,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:51,852 INFO L225 Difference]: With dead ends: 12647 [2024-11-24 00:59:51,853 INFO L226 Difference]: Without dead ends: 6629 [2024-11-24 00:59:51,861 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 00:59:51,862 INFO L435 NwaCegarLoop]: 1560 mSDtfsCounter, 42 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:51,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3073 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:51,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6629 states. [2024-11-24 00:59:52,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6629 to 6627. [2024-11-24 00:59:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6627 states, 6625 states have (on average 1.4567547169811321) internal successors, (9651), 6626 states have internal predecessors, (9651), 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 00:59:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6627 states to 6627 states and 9651 transitions. [2024-11-24 00:59:52,105 INFO L78 Accepts]: Start accepts. Automaton has 6627 states and 9651 transitions. Word has length 67 [2024-11-24 00:59:52,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:52,105 INFO L471 AbstractCegarLoop]: Abstraction has 6627 states and 9651 transitions. [2024-11-24 00:59:52,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 00:59:52,105 INFO L276 IsEmpty]: Start isEmpty. Operand 6627 states and 9651 transitions. [2024-11-24 00:59:52,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:59:52,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:52,107 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:59:52,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:59:52,107 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:52,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash -733131994, now seen corresponding path program 1 times [2024-11-24 00:59:52,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:52,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913335656] [2024-11-24 00:59:52,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:52,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:59:52,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:52,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913335656] [2024-11-24 00:59:52,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913335656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:52,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:52,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:59:52,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615396745] [2024-11-24 00:59:52,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:52,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:59:52,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:52,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:59:52,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:59:52,305 INFO L87 Difference]: Start difference. First operand 6627 states and 9651 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 00:59:52,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:52,593 INFO L93 Difference]: Finished difference Result 10477 states and 15096 transitions. [2024-11-24 00:59:52,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:59:52,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 67 [2024-11-24 00:59:52,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:52,614 INFO L225 Difference]: With dead ends: 10477 [2024-11-24 00:59:52,614 INFO L226 Difference]: Without dead ends: 9515 [2024-11-24 00:59:52,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:59:52,620 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 4665 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4665 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:52,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4665 Valid, 3404 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:59:52,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9515 states. [2024-11-24 00:59:52,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9515 to 7587. [2024-11-24 00:59:52,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7587 states, 7585 states have (on average 1.4495715227422545) internal successors, (10995), 7586 states have internal predecessors, (10995), 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 00:59:52,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7587 states to 7587 states and 10995 transitions. [2024-11-24 00:59:52,837 INFO L78 Accepts]: Start accepts. Automaton has 7587 states and 10995 transitions. Word has length 67 [2024-11-24 00:59:52,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:52,837 INFO L471 AbstractCegarLoop]: Abstraction has 7587 states and 10995 transitions. [2024-11-24 00:59:52,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 00:59:52,838 INFO L276 IsEmpty]: Start isEmpty. Operand 7587 states and 10995 transitions. [2024-11-24 00:59:52,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 00:59:52,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:52,839 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:59:52,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:59:52,840 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:52,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:52,841 INFO L85 PathProgramCache]: Analyzing trace with hash 548136257, now seen corresponding path program 1 times [2024-11-24 00:59:52,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:52,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753501837] [2024-11-24 00:59:52,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:52,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:59:53,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:53,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753501837] [2024-11-24 00:59:53,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753501837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:53,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:53,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:59:53,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993152803] [2024-11-24 00:59:53,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:53,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:59:53,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:53,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:59:53,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:59:53,007 INFO L87 Difference]: Start difference. First operand 7587 states and 10995 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 00:59:53,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:53,091 INFO L93 Difference]: Finished difference Result 10231 states and 14693 transitions. [2024-11-24 00:59:53,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:59:53,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2024-11-24 00:59:53,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:53,102 INFO L225 Difference]: With dead ends: 10231 [2024-11-24 00:59:53,103 INFO L226 Difference]: Without dead ends: 4949 [2024-11-24 00:59:53,108 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 00:59:53,109 INFO L435 NwaCegarLoop]: 1553 mSDtfsCounter, 37 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:53,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 3058 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:53,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4949 states. [2024-11-24 00:59:53,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4949 to 4947. [2024-11-24 00:59:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4947 states, 4945 states have (on average 1.4671385237613752) internal successors, (7255), 4946 states have internal predecessors, (7255), 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 00:59:53,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4947 states to 4947 states and 7255 transitions. [2024-11-24 00:59:53,216 INFO L78 Accepts]: Start accepts. Automaton has 4947 states and 7255 transitions. Word has length 68 [2024-11-24 00:59:53,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:53,216 INFO L471 AbstractCegarLoop]: Abstraction has 4947 states and 7255 transitions. [2024-11-24 00:59:53,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 00:59:53,216 INFO L276 IsEmpty]: Start isEmpty. Operand 4947 states and 7255 transitions. [2024-11-24 00:59:53,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-24 00:59:53,217 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:53,218 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:59:53,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:59:53,218 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:53,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:53,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1967598547, now seen corresponding path program 1 times [2024-11-24 00:59:53,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:53,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322683505] [2024-11-24 00:59:53,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:53,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:53,345 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:59:53,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:53,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322683505] [2024-11-24 00:59:53,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322683505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:53,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:53,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:59:53,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306234515] [2024-11-24 00:59:53,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:53,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:59:53,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:53,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:59:53,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:59:53,347 INFO L87 Difference]: Start difference. First operand 4947 states and 7255 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 00:59:53,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:53,405 INFO L93 Difference]: Finished difference Result 6271 states and 9083 transitions. [2024-11-24 00:59:53,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:59:53,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2024-11-24 00:59:53,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:53,414 INFO L225 Difference]: With dead ends: 6271 [2024-11-24 00:59:53,414 INFO L226 Difference]: Without dead ends: 3629 [2024-11-24 00:59:53,418 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 00:59:53,418 INFO L435 NwaCegarLoop]: 1546 mSDtfsCounter, 34 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:53,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3043 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:53,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2024-11-24 00:59:53,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3627. [2024-11-24 00:59:53,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3627 states, 3625 states have (on average 1.4915862068965517) internal successors, (5407), 3626 states have internal predecessors, (5407), 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 00:59:53,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3627 states to 3627 states and 5407 transitions. [2024-11-24 00:59:53,491 INFO L78 Accepts]: Start accepts. Automaton has 3627 states and 5407 transitions. Word has length 70 [2024-11-24 00:59:53,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:53,491 INFO L471 AbstractCegarLoop]: Abstraction has 3627 states and 5407 transitions. [2024-11-24 00:59:53,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 00:59:53,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3627 states and 5407 transitions. [2024-11-24 00:59:53,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-24 00:59:53,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:53,493 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:59:53,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:59:53,493 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:53,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:53,494 INFO L85 PathProgramCache]: Analyzing trace with hash -673918747, now seen corresponding path program 1 times [2024-11-24 00:59:53,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:53,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090668755] [2024-11-24 00:59:53,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:53,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:59:53,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:53,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090668755] [2024-11-24 00:59:53,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090668755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:53,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:53,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:59:53,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855354194] [2024-11-24 00:59:53,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:53,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:59:53,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:53,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:59:53,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:59:53,649 INFO L87 Difference]: Start difference. First operand 3627 states and 5407 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 00:59:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:53,700 INFO L93 Difference]: Finished difference Result 4291 states and 6311 transitions. [2024-11-24 00:59:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:59:53,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2024-11-24 00:59:53,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:53,710 INFO L225 Difference]: With dead ends: 4291 [2024-11-24 00:59:53,710 INFO L226 Difference]: Without dead ends: 2969 [2024-11-24 00:59:53,713 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 00:59:53,714 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 31 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:53,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3028 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:53,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2024-11-24 00:59:53,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 2967. [2024-11-24 00:59:53,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2965 states have (on average 1.5156829679595278) internal successors, (4494), 2966 states have internal predecessors, (4494), 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 00:59:53,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 4494 transitions. [2024-11-24 00:59:53,871 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 4494 transitions. Word has length 72 [2024-11-24 00:59:53,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:53,871 INFO L471 AbstractCegarLoop]: Abstraction has 2967 states and 4494 transitions. [2024-11-24 00:59:53,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 00:59:53,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 4494 transitions. [2024-11-24 00:59:53,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-24 00:59:53,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:53,873 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:59:53,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:59:53,873 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:53,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:53,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1516893303, now seen corresponding path program 1 times [2024-11-24 00:59:53,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:53,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469733923] [2024-11-24 00:59:53,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:53,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:59:55,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:55,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469733923] [2024-11-24 00:59:55,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469733923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:59:55,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53287939] [2024-11-24 00:59:55,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:55,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:59:55,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:59:55,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:59:55,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:59:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:56,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:59:56,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:59:56,822 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:59:56,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:59:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:59:57,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53287939] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:59:57,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:59:57,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-24 00:59:57,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396548079] [2024-11-24 00:59:57,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:59:57,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-24 00:59:57,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:57,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-24 00:59:57,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:59:57,992 INFO L87 Difference]: Start difference. First operand 2967 states and 4494 transitions. Second operand has 28 states, 28 states have (on average 6.714285714285714) internal successors, (188), 27 states have internal predecessors, (188), 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 01:00:02,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:02,049 INFO L93 Difference]: Finished difference Result 5331 states and 7678 transitions. [2024-11-24 01:00:02,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-24 01:00:02,049 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.714285714285714) internal successors, (188), 27 states have internal predecessors, (188), 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 74 [2024-11-24 01:00:02,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:02,061 INFO L225 Difference]: With dead ends: 5331 [2024-11-24 01:00:02,061 INFO L226 Difference]: Without dead ends: 4669 [2024-11-24 01:00:02,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=858, Invalid=3174, Unknown=0, NotChecked=0, Total=4032 [2024-11-24 01:00:02,068 INFO L435 NwaCegarLoop]: 1493 mSDtfsCounter, 29613 mSDsluCounter, 4863 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29613 SdHoareTripleChecker+Valid, 6356 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:02,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29613 Valid, 6356 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:00:02,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4669 states. [2024-11-24 01:00:02,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4669 to 4606. [2024-11-24 01:00:02,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4606 states, 4604 states have (on average 1.4443961772371852) internal successors, (6650), 4605 states have internal predecessors, (6650), 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 01:00:02,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4606 states to 4606 states and 6650 transitions. [2024-11-24 01:00:02,193 INFO L78 Accepts]: Start accepts. Automaton has 4606 states and 6650 transitions. Word has length 74 [2024-11-24 01:00:02,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:02,194 INFO L471 AbstractCegarLoop]: Abstraction has 4606 states and 6650 transitions. [2024-11-24 01:00:02,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.714285714285714) internal successors, (188), 27 states have internal predecessors, (188), 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 01:00:02,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4606 states and 6650 transitions. [2024-11-24 01:00:02,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-24 01:00:02,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:02,197 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:00:02,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:00:02,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-24 01:00:02,399 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:02,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:02,399 INFO L85 PathProgramCache]: Analyzing trace with hash 217982714, now seen corresponding path program 1 times [2024-11-24 01:00:02,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:02,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970143151] [2024-11-24 01:00:02,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:02,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:00:03,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:03,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970143151] [2024-11-24 01:00:03,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970143151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:00:03,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22468314] [2024-11-24 01:00:03,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:03,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:03,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:00:03,006 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:00:03,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:00:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:03,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:00:03,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:00:03,726 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:00:03,726 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:00:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:00:05,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22468314] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:00:05,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:00:05,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-24 01:00:05,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051020971] [2024-11-24 01:00:05,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:00:05,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 01:00:05,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:05,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 01:00:05,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:00:05,134 INFO L87 Difference]: Start difference. First operand 4606 states and 6650 transitions. Second operand has 25 states, 25 states have (on average 8.36) internal successors, (209), 24 states have internal predecessors, (209), 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 01:00:06,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:06,679 INFO L93 Difference]: Finished difference Result 11183 states and 15455 transitions. [2024-11-24 01:00:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 01:00:06,679 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.36) internal successors, (209), 24 states have internal predecessors, (209), 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 75 [2024-11-24 01:00:06,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:06,697 INFO L225 Difference]: With dead ends: 11183 [2024-11-24 01:00:06,697 INFO L226 Difference]: Without dead ends: 8882 [2024-11-24 01:00:06,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=457, Invalid=1613, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 01:00:06,704 INFO L435 NwaCegarLoop]: 1494 mSDtfsCounter, 16933 mSDsluCounter, 6330 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16933 SdHoareTripleChecker+Valid, 7824 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:06,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16933 Valid, 7824 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:00:06,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8882 states. [2024-11-24 01:00:07,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8882 to 8841. [2024-11-24 01:00:07,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8841 states, 8839 states have (on average 1.3808123090847382) internal successors, (12205), 8840 states have internal predecessors, (12205), 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 01:00:07,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8841 states to 8841 states and 12205 transitions. [2024-11-24 01:00:07,114 INFO L78 Accepts]: Start accepts. Automaton has 8841 states and 12205 transitions. Word has length 75 [2024-11-24 01:00:07,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:07,115 INFO L471 AbstractCegarLoop]: Abstraction has 8841 states and 12205 transitions. [2024-11-24 01:00:07,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.36) internal successors, (209), 24 states have internal predecessors, (209), 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 01:00:07,115 INFO L276 IsEmpty]: Start isEmpty. Operand 8841 states and 12205 transitions. [2024-11-24 01:00:07,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-24 01:00:07,117 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:07,118 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:00:07,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:00:07,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-24 01:00:07,319 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:07,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:07,320 INFO L85 PathProgramCache]: Analyzing trace with hash -268185879, now seen corresponding path program 1 times [2024-11-24 01:00:07,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:07,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417923778] [2024-11-24 01:00:07,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:07,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:00:07,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:07,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417923778] [2024-11-24 01:00:07,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417923778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:00:07,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895432072] [2024-11-24 01:00:07,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:07,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:07,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:00:07,778 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:00:07,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:00:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:07,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 01:00:07,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:00:08,648 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:00:08,648 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:00:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:00:09,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895432072] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:00:09,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:00:09,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 28 [2024-11-24 01:00:09,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920289246] [2024-11-24 01:00:09,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:00:09,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-24 01:00:09,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:09,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-24 01:00:09,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:00:09,641 INFO L87 Difference]: Start difference. First operand 8841 states and 12205 transitions. Second operand has 28 states, 28 states have (on average 7.0) internal successors, (196), 28 states have internal predecessors, (196), 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 01:00:10,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:10,702 INFO L93 Difference]: Finished difference Result 20518 states and 27641 transitions. [2024-11-24 01:00:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:00:10,703 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.0) internal successors, (196), 28 states have internal predecessors, (196), 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 76 [2024-11-24 01:00:10,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:10,762 INFO L225 Difference]: With dead ends: 20518 [2024-11-24 01:00:10,762 INFO L226 Difference]: Without dead ends: 13982 [2024-11-24 01:00:10,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=351, Invalid=1209, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 01:00:10,781 INFO L435 NwaCegarLoop]: 1517 mSDtfsCounter, 13346 mSDsluCounter, 7946 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13346 SdHoareTripleChecker+Valid, 9463 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:10,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13346 Valid, 9463 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:00:10,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13982 states. [2024-11-24 01:00:11,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13982 to 13340. [2024-11-24 01:00:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13340 states, 13338 states have (on average 1.3480281901334532) internal successors, (17980), 13339 states have internal predecessors, (17980), 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 01:00:11,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13340 states to 13340 states and 17980 transitions. [2024-11-24 01:00:11,412 INFO L78 Accepts]: Start accepts. Automaton has 13340 states and 17980 transitions. Word has length 76 [2024-11-24 01:00:11,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:11,413 INFO L471 AbstractCegarLoop]: Abstraction has 13340 states and 17980 transitions. [2024-11-24 01:00:11,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.0) internal successors, (196), 28 states have internal predecessors, (196), 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 01:00:11,413 INFO L276 IsEmpty]: Start isEmpty. Operand 13340 states and 17980 transitions. [2024-11-24 01:00:11,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:00:11,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:11,416 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:00:11,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:00:11,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:11,620 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:11,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:11,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1113650506, now seen corresponding path program 1 times [2024-11-24 01:00:11,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:11,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612997176] [2024-11-24 01:00:11,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:11,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:00:13,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:13,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612997176] [2024-11-24 01:00:13,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612997176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:00:13,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071506487] [2024-11-24 01:00:13,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:13,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:13,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:00:13,590 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:00:13,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:00:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:13,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-24 01:00:13,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:00:34,131 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:00:34,131 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:00:39,212 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:00:39,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071506487] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:00:39,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:00:39,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 25, 23] total 60 [2024-11-24 01:00:39,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017055449] [2024-11-24 01:00:39,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:00:39,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-24 01:00:39,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:39,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-24 01:00:39,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=3181, Unknown=1, NotChecked=0, Total=3540 [2024-11-24 01:00:39,215 INFO L87 Difference]: Start difference. First operand 13340 states and 17980 transitions. Second operand has 60 states, 60 states have (on average 3.4833333333333334) internal successors, (209), 60 states have internal predecessors, (209), 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 01:00:54,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:00:59,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:01:16,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:01:29,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:02:34,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:03:13,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:03:30,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:03:37,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:03:51,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:51,393 INFO L93 Difference]: Finished difference Result 62198 states and 81503 transitions. [2024-11-24 01:03:51,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 280 states. [2024-11-24 01:03:51,394 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 3.4833333333333334) internal successors, (209), 60 states have internal predecessors, (209), 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 77 [2024-11-24 01:03:51,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:51,429 INFO L225 Difference]: With dead ends: 62198 [2024-11-24 01:03:51,429 INFO L226 Difference]: Without dead ends: 54990 [2024-11-24 01:03:51,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 336 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47182 ImplicationChecksByTransitivity, 158.8s TimeCoverageRelationStatistics Valid=18868, Invalid=95034, Unknown=4, NotChecked=0, Total=113906 [2024-11-24 01:03:51,447 INFO L435 NwaCegarLoop]: 1561 mSDtfsCounter, 32547 mSDsluCounter, 34185 mSDsCounter, 0 mSdLazyCounter, 8875 mSolverCounterSat, 217 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32547 SdHoareTripleChecker+Valid, 35746 SdHoareTripleChecker+Invalid, 9094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 8875 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:51,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32547 Valid, 35746 Invalid, 9094 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [217 Valid, 8875 Invalid, 2 Unknown, 0 Unchecked, 41.3s Time] [2024-11-24 01:03:51,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54990 states. [2024-11-24 01:03:52,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54990 to 22475. [2024-11-24 01:03:52,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22475 states, 22473 states have (on average 1.3303519779290705) internal successors, (29897), 22474 states have internal predecessors, (29897), 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 01:03:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22475 states to 22475 states and 29897 transitions. [2024-11-24 01:03:52,770 INFO L78 Accepts]: Start accepts. Automaton has 22475 states and 29897 transitions. Word has length 77 [2024-11-24 01:03:52,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:52,771 INFO L471 AbstractCegarLoop]: Abstraction has 22475 states and 29897 transitions. [2024-11-24 01:03:52,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.4833333333333334) internal successors, (209), 60 states have internal predecessors, (209), 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 01:03:52,771 INFO L276 IsEmpty]: Start isEmpty. Operand 22475 states and 29897 transitions. [2024-11-24 01:03:52,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-24 01:03:52,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:52,773 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:03:52,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:03:52,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:52,978 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:52,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:52,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1383704617, now seen corresponding path program 1 times [2024-11-24 01:03:52,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:52,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075000297] [2024-11-24 01:03:52,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:52,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:55,228 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:03:55,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:55,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075000297] [2024-11-24 01:03:55,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075000297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:03:55,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979422833] [2024-11-24 01:03:55,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:55,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:55,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:55,230 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:03:55,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:03:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:55,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 01:03:55,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:03:55,673 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:03:55,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:03:55,895 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:03:55,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979422833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:03:55,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:03:55,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 6, 4] total 30 [2024-11-24 01:03:55,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760667531] [2024-11-24 01:03:55,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:03:55,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-24 01:03:55,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:55,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-24 01:03:55,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2024-11-24 01:03:55,896 INFO L87 Difference]: Start difference. First operand 22475 states and 29897 transitions. Second operand has 30 states, 30 states have (on average 7.233333333333333) internal successors, (217), 30 states have internal predecessors, (217), 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 01:04:26,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:26,463 INFO L93 Difference]: Finished difference Result 110539 states and 141718 transitions. [2024-11-24 01:04:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2024-11-24 01:04:26,463 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 7.233333333333333) internal successors, (217), 30 states have internal predecessors, (217), 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 78 [2024-11-24 01:04:26,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:26,535 INFO L225 Difference]: With dead ends: 110539 [2024-11-24 01:04:26,535 INFO L226 Difference]: Without dead ends: 90369 [2024-11-24 01:04:26,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21408 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=8576, Invalid=39604, Unknown=0, NotChecked=0, Total=48180 [2024-11-24 01:04:26,550 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 21034 mSDsluCounter, 19386 mSDsCounter, 0 mSdLazyCounter, 3538 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21034 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 3744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 3538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:26,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21034 Valid, 20963 Invalid, 3744 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [206 Valid, 3538 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-24 01:04:26,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90369 states. [2024-11-24 01:04:29,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90369 to 49664. [2024-11-24 01:04:29,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49664 states, 49662 states have (on average 1.2520236800773228) internal successors, (62178), 49663 states have internal predecessors, (62178), 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 01:04:29,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49664 states to 49664 states and 62178 transitions. [2024-11-24 01:04:29,968 INFO L78 Accepts]: Start accepts. Automaton has 49664 states and 62178 transitions. Word has length 78 [2024-11-24 01:04:29,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:29,968 INFO L471 AbstractCegarLoop]: Abstraction has 49664 states and 62178 transitions. [2024-11-24 01:04:29,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 7.233333333333333) internal successors, (217), 30 states have internal predecessors, (217), 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 01:04:29,968 INFO L276 IsEmpty]: Start isEmpty. Operand 49664 states and 62178 transitions. [2024-11-24 01:04:29,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-24 01:04:29,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:29,970 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:29,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:04:30,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:30,171 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:30,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:30,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1281515107, now seen corresponding path program 1 times [2024-11-24 01:04:30,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:30,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679952216] [2024-11-24 01:04:30,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:30,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:32,686 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:32,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:32,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679952216] [2024-11-24 01:04:32,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679952216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:04:32,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309621475] [2024-11-24 01:04:32,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:32,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:32,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:04:32,688 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:04:32,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:04:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:32,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-24 01:04:32,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:04:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:38,297 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:04:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:47,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309621475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:04:47,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:04:47,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 28, 27] total 77 [2024-11-24 01:04:47,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73691471] [2024-11-24 01:04:47,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:04:47,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-11-24 01:04:47,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:47,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-11-24 01:04:47,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=560, Invalid=5292, Unknown=0, NotChecked=0, Total=5852 [2024-11-24 01:04:47,414 INFO L87 Difference]: Start difference. First operand 49664 states and 62178 transitions. Second operand has 77 states, 77 states have (on average 2.8051948051948052) internal successors, (216), 77 states have internal predecessors, (216), 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 01:06:30,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:30,450 INFO L93 Difference]: Finished difference Result 96040 states and 120291 transitions. [2024-11-24 01:06:30,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 218 states. [2024-11-24 01:06:30,451 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 2.8051948051948052) internal successors, (216), 77 states have internal predecessors, (216), 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 78 [2024-11-24 01:06:30,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:30,517 INFO L225 Difference]: With dead ends: 96040 [2024-11-24 01:06:30,517 INFO L226 Difference]: Without dead ends: 92483 [2024-11-24 01:06:30,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30376 ImplicationChecksByTransitivity, 94.5s TimeCoverageRelationStatistics Valid=13584, Invalid=69648, Unknown=0, NotChecked=0, Total=83232 [2024-11-24 01:06:30,529 INFO L435 NwaCegarLoop]: 1616 mSDtfsCounter, 32453 mSDsluCounter, 28502 mSDsCounter, 0 mSdLazyCounter, 6834 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32453 SdHoareTripleChecker+Valid, 30118 SdHoareTripleChecker+Invalid, 7215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 6834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:30,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32453 Valid, 30118 Invalid, 7215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [381 Valid, 6834 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-24 01:06:30,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92483 states. [2024-11-24 01:06:35,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92483 to 52733. [2024-11-24 01:06:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52733 states, 52731 states have (on average 1.2509719140543514) internal successors, (65965), 52732 states have internal predecessors, (65965), 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 01:06:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52733 states to 52733 states and 65965 transitions. [2024-11-24 01:06:35,394 INFO L78 Accepts]: Start accepts. Automaton has 52733 states and 65965 transitions. Word has length 78 [2024-11-24 01:06:35,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:35,394 INFO L471 AbstractCegarLoop]: Abstraction has 52733 states and 65965 transitions. [2024-11-24 01:06:35,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 2.8051948051948052) internal successors, (216), 77 states have internal predecessors, (216), 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 01:06:35,394 INFO L276 IsEmpty]: Start isEmpty. Operand 52733 states and 65965 transitions. [2024-11-24 01:06:35,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-24 01:06:35,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:35,395 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:06:35,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:06:35,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:35,595 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:35,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:35,596 INFO L85 PathProgramCache]: Analyzing trace with hash -601997175, now seen corresponding path program 1 times [2024-11-24 01:06:35,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:35,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141490239] [2024-11-24 01:06:35,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:35,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:36,395 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:06:36,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:36,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141490239] [2024-11-24 01:06:36,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141490239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:36,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290949479] [2024-11-24 01:06:36,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:36,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:36,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:36,398 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:36,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:06:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:36,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-24 01:06:36,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:06:41,375 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:06:46,951 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:06:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290949479] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:06:46,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:06:46,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 23, 19] total 53 [2024-11-24 01:06:46,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093792282] [2024-11-24 01:06:46,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:06:46,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-24 01:06:46,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:46,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-24 01:06:46,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=2375, Unknown=0, NotChecked=0, Total=2756 [2024-11-24 01:06:46,953 INFO L87 Difference]: Start difference. First operand 52733 states and 65965 transitions. Second operand has 53 states, 53 states have (on average 4.056603773584905) internal successors, (215), 53 states have internal predecessors, (215), 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 01:07:21,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:07:21,487 INFO L93 Difference]: Finished difference Result 102099 states and 127297 transitions. [2024-11-24 01:07:21,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-11-24 01:07:21,488 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 4.056603773584905) internal successors, (215), 53 states have internal predecessors, (215), 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 78 [2024-11-24 01:07:21,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:07:21,763 INFO L225 Difference]: With dead ends: 102099 [2024-11-24 01:07:21,763 INFO L226 Difference]: Without dead ends: 75502 [2024-11-24 01:07:21,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5472 ImplicationChecksByTransitivity, 29.0s TimeCoverageRelationStatistics Valid=3736, Invalid=13820, Unknown=0, NotChecked=0, Total=17556 [2024-11-24 01:07:21,784 INFO L435 NwaCegarLoop]: 1532 mSDtfsCounter, 18309 mSDsluCounter, 17537 mSDsCounter, 0 mSdLazyCounter, 2663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18309 SdHoareTripleChecker+Valid, 19069 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:07:21,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18309 Valid, 19069 Invalid, 2731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 2663 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-24 01:07:21,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75502 states. [2024-11-24 01:07:26,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75502 to 47687. [2024-11-24 01:07:26,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47687 states, 47685 states have (on average 1.2567054629338366) internal successors, (59926), 47686 states have internal predecessors, (59926), 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 01:07:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47687 states to 47687 states and 59926 transitions. [2024-11-24 01:07:26,776 INFO L78 Accepts]: Start accepts. Automaton has 47687 states and 59926 transitions. Word has length 78 [2024-11-24 01:07:26,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:07:26,776 INFO L471 AbstractCegarLoop]: Abstraction has 47687 states and 59926 transitions. [2024-11-24 01:07:26,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 4.056603773584905) internal successors, (215), 53 states have internal predecessors, (215), 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 01:07:26,776 INFO L276 IsEmpty]: Start isEmpty. Operand 47687 states and 59926 transitions. [2024-11-24 01:07:26,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 01:07:26,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:07:26,778 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:07:26,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 01:07:26,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-24 01:07:26,978 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:07:26,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:07:26,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1635842272, now seen corresponding path program 1 times [2024-11-24 01:07:26,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:07:26,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932752102] [2024-11-24 01:07:26,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:26,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:07:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:07:28,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:07:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932752102] [2024-11-24 01:07:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932752102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:07:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351085178] [2024-11-24 01:07:28,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:28,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:07:28,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:07:28,165 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:07:28,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ad3bb6-45c9-4b14-a4e4-34673d649534/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:07:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:28,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-24 01:07:28,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:07:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:07:32,384 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:07:39,961 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:07:39,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351085178] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:07:39,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:07:39,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21, 26] total 58 [2024-11-24 01:07:39,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749336886] [2024-11-24 01:07:39,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:07:39,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-24 01:07:39,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:07:39,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-24 01:07:39,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=2831, Unknown=0, NotChecked=0, Total=3306 [2024-11-24 01:07:39,963 INFO L87 Difference]: Start difference. First operand 47687 states and 59926 transitions. Second operand has 58 states, 58 states have (on average 3.5) internal successors, (203), 58 states have internal predecessors, (203), 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 01:07:53,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:07:53,950 INFO L93 Difference]: Finished difference Result 66540 states and 83347 transitions. [2024-11-24 01:07:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-24 01:07:53,951 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 3.5) internal successors, (203), 58 states have internal predecessors, (203), 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 79 [2024-11-24 01:07:53,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:07:53,986 INFO L225 Difference]: With dead ends: 66540 [2024-11-24 01:07:53,986 INFO L226 Difference]: Without dead ends: 46711 [2024-11-24 01:07:53,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2463 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=2418, Invalid=7884, Unknown=0, NotChecked=0, Total=10302 [2024-11-24 01:07:53,997 INFO L435 NwaCegarLoop]: 1525 mSDtfsCounter, 24463 mSDsluCounter, 14251 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24463 SdHoareTripleChecker+Valid, 15776 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:07:53,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24463 Valid, 15776 Invalid, 1716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 01:07:54,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46711 states.