./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.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_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/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_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/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_aa88635c-e289-4e5a-9549-d2cb4d2363c1/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 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:31:54,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:31:54,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:31:54,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:31:54,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:31:54,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:31:54,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:31:54,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:31:54,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:31:54,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:31:54,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:31:54,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:31:54,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:31:54,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:31:54,921 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:31:54,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:31:54,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:31:54,922 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:31:54,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:31:54,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:31:54,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:31:54,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:31:54,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:31:54,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:31:54,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:31:54,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:31:54,923 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:31:54,923 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:31:54,924 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:31:54,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:31:54,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:31:54,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:31:54,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:31:54,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:31:54,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:31:54,926 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:31:54,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:31:54,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:31:54,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:31:54,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:31:54,927 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:31:54,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:31:54,927 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:31:54,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:31:54,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:31:54,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:31:54,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:31:54,928 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:31:54,928 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_aa88635c-e289-4e5a-9549-d2cb4d2363c1/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 -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2024-11-23 18:31:55,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:31:55,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:31:55,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:31:55,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:31:55,359 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:31:55,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2024-11-23 18:31:59,075 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/data/0e6ff933b/bef4ad3691254b93b3293ce451c1676b/FLAGb06ca2eb2 [2024-11-23 18:31:59,738 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:31:59,739 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2024-11-23 18:31:59,779 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/data/0e6ff933b/bef4ad3691254b93b3293ce451c1676b/FLAGb06ca2eb2 [2024-11-23 18:32:00,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/data/0e6ff933b/bef4ad3691254b93b3293ce451c1676b [2024-11-23 18:32:00,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:32:00,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:32:00,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:32:00,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:32:00,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:32:00,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:32:00" (1/1) ... [2024-11-23 18:32:00,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5596405e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:00, skipping insertion in model container [2024-11-23 18:32:00,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:32:00" (1/1) ... [2024-11-23 18:32:00,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:32:00,542 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_aa88635c-e289-4e5a-9549-d2cb4d2363c1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2024-11-23 18:32:01,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:32:01,464 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:32:01,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok4.i","-S") [42] [2024-11-23 18:32:01,486 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_aa88635c-e289-4e5a-9549-d2cb4d2363c1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2024-11-23 18:32:01,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:32:01,957 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:32:01,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01 WrapperNode [2024-11-23 18:32:01,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:32:01,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:32:01,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:32:01,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:32:01,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:02,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:02,440 INFO L138 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8763 [2024-11-23 18:32:02,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:32:02,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:32:02,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:32:02,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:32:02,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:02,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:02,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:02,741 INFO L175 MemorySlicer]: Split 2508 memory accesses to 49 slices as follows [2, 80, 86, 37, 37, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46]. 3 percent of accesses are in the largest equivalence class. The 338 initializations are split as follows [2, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]. The 490 writes are split as follows [0, 7, 7, 7, 7, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6]. [2024-11-23 18:32:02,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:02,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:03,019 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:03,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:03,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:03,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:03,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:03,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:32:03,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:32:03,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:32:03,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:32:03,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (1/1) ... [2024-11-23 18:32:03,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:32:03,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:32:03,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:32:03,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:32:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2024-11-23 18:32:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2024-11-23 18:32:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2024-11-23 18:32:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2024-11-23 18:32:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 18:32:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 18:32:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 18:32:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 18:32:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 18:32:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 18:32:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 18:32:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 18:32:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-23 18:32:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-23 18:32:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-23 18:32:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-23 18:32:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-23 18:32:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-23 18:32:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-23 18:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-23 18:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-23 18:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-23 18:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-23 18:32:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-23 18:32:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-23 18:32:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-23 18:32:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-23 18:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-23 18:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-23 18:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-23 18:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-23 18:32:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#31 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#32 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#33 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#34 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#35 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#36 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#37 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#38 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#39 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#40 [2024-11-23 18:32:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#41 [2024-11-23 18:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#42 [2024-11-23 18:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#43 [2024-11-23 18:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#44 [2024-11-23 18:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#45 [2024-11-23 18:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#46 [2024-11-23 18:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#47 [2024-11-23 18:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#48 [2024-11-23 18:32:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2024-11-23 18:32:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2024-11-23 18:32:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-23 18:32:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-23 18:32:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2024-11-23 18:32:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2024-11-23 18:32:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2024-11-23 18:32:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2024-11-23 18:32:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2024-11-23 18:32:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2024-11-23 18:32:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2024-11-23 18:32:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2024-11-23 18:32:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2024-11-23 18:32:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2024-11-23 18:32:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2024-11-23 18:32:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2024-11-23 18:32:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 18:32:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-23 18:32:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-23 18:32:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-23 18:32:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-23 18:32:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-23 18:32:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-23 18:32:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-23 18:32:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-23 18:32:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-23 18:32:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-23 18:32:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-23 18:32:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-23 18:32:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2024-11-23 18:32:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2024-11-23 18:32:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2024-11-23 18:32:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2024-11-23 18:32:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#31 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#32 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#33 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#34 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#35 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#36 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#37 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#38 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#39 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#40 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#41 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#42 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#43 [2024-11-23 18:32:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#44 [2024-11-23 18:32:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#45 [2024-11-23 18:32:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#46 [2024-11-23 18:32:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#47 [2024-11-23 18:32:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#48 [2024-11-23 18:32:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-23 18:32:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-23 18:32:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2024-11-23 18:32:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2024-11-23 18:32:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2024-11-23 18:32:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2024-11-23 18:32:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2024-11-23 18:32:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2024-11-23 18:32:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2024-11-23 18:32:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2024-11-23 18:32:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2024-11-23 18:32:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2024-11-23 18:32:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-23 18:32:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-23 18:32:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:32:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-23 18:32:03,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-23 18:32:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2024-11-23 18:32:03,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2024-11-23 18:32:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2024-11-23 18:32:03,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2024-11-23 18:32:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2024-11-23 18:32:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2024-11-23 18:32:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-23 18:32:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-23 18:32:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2024-11-23 18:32:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2024-11-23 18:32:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-23 18:32:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-23 18:32:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2024-11-23 18:32:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2024-11-23 18:32:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2024-11-23 18:32:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2024-11-23 18:32:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2024-11-23 18:32:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2024-11-23 18:32:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2024-11-23 18:32:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2024-11-23 18:32:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2024-11-23 18:32:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2024-11-23 18:32:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2024-11-23 18:32:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2024-11-23 18:32:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2024-11-23 18:32:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2024-11-23 18:32:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2024-11-23 18:32:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2024-11-23 18:32:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2024-11-23 18:32:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2024-11-23 18:32:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2024-11-23 18:32:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2024-11-23 18:32:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2024-11-23 18:32:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2024-11-23 18:32:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2024-11-23 18:32:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2024-11-23 18:32:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2024-11-23 18:32:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2024-11-23 18:32:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2024-11-23 18:32:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2024-11-23 18:32:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2024-11-23 18:32:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2024-11-23 18:32:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2024-11-23 18:32:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2024-11-23 18:32:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2024-11-23 18:32:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2024-11-23 18:32:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2024-11-23 18:32:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2024-11-23 18:32:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2024-11-23 18:32:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2024-11-23 18:32:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:32:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 18:32:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 18:32:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 18:32:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-23 18:32:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#31 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#32 [2024-11-23 18:32:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#33 [2024-11-23 18:32:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#34 [2024-11-23 18:32:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#35 [2024-11-23 18:32:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#36 [2024-11-23 18:32:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#37 [2024-11-23 18:32:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#38 [2024-11-23 18:32:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#39 [2024-11-23 18:32:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#40 [2024-11-23 18:32:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#41 [2024-11-23 18:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#42 [2024-11-23 18:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#43 [2024-11-23 18:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#44 [2024-11-23 18:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#45 [2024-11-23 18:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#46 [2024-11-23 18:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#47 [2024-11-23 18:32:03,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#48 [2024-11-23 18:32:03,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2024-11-23 18:32:03,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2024-11-23 18:32:03,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:32:03,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:32:04,529 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:32:04,533 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:32:20,280 INFO L? ?]: Removed 946 outVars from TransFormulas that were not future-live. [2024-11-23 18:32:20,280 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:32:20,397 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:32:20,398 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 18:32:20,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:32:20 BoogieIcfgContainer [2024-11-23 18:32:20,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:32:20,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:32:20,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:32:20,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:32:20,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:32:00" (1/3) ... [2024-11-23 18:32:20,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4607e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:32:20, skipping insertion in model container [2024-11-23 18:32:20,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:01" (2/3) ... [2024-11-23 18:32:20,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4607e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:32:20, skipping insertion in model container [2024-11-23 18:32:20,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:32:20" (3/3) ... [2024-11-23 18:32:20,415 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2024-11-23 18:32:20,437 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:32:20,442 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_ctm.4.c that has 45 procedures, 2469 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 18:32:20,617 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:32:20,637 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;@687706c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:32:20,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:32:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 2469 states, 2115 states have (on average 1.4799054373522458) internal successors, (3130), 2139 states have internal predecessors, (3130), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) [2024-11-23 18:32:20,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 18:32:20,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:20,687 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:20,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:20,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:20,696 INFO L85 PathProgramCache]: Analyzing trace with hash -958606310, now seen corresponding path program 1 times [2024-11-23 18:32:20,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:20,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956669463] [2024-11-23 18:32:20,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:20,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:22,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:32:22,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:22,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956669463] [2024-11-23 18:32:22,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956669463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:22,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:22,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:32:22,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720212497] [2024-11-23 18:32:22,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:22,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:32:22,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:22,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:32:22,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:32:22,656 INFO L87 Difference]: Start difference. First operand has 2469 states, 2115 states have (on average 1.4799054373522458) internal successors, (3130), 2139 states have internal predecessors, (3130), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) Second operand has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 18:32:23,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:23,088 INFO L93 Difference]: Finished difference Result 4929 states and 7742 transitions. [2024-11-23 18:32:23,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:32:23,091 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 148 [2024-11-23 18:32:23,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:23,151 INFO L225 Difference]: With dead ends: 4929 [2024-11-23 18:32:23,151 INFO L226 Difference]: Without dead ends: 2456 [2024-11-23 18:32:23,208 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 [2024-11-23 18:32:23,213 INFO L435 NwaCegarLoop]: 3050 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, 3050 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:23,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3050 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:32:23,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2456 states. [2024-11-23 18:32:23,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2456 to 2456. [2024-11-23 18:32:23,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2456 states, 2103 states have (on average 1.1535901093675702) internal successors, (2426), 2127 states have internal predecessors, (2426), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (307), 297 states have call predecessors, (307), 307 states have call successors, (307) [2024-11-23 18:32:23,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3041 transitions. [2024-11-23 18:32:23,628 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3041 transitions. Word has length 148 [2024-11-23 18:32:23,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:23,628 INFO L471 AbstractCegarLoop]: Abstraction has 2456 states and 3041 transitions. [2024-11-23 18:32:23,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 18:32:23,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3041 transitions. [2024-11-23 18:32:23,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-23 18:32:23,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:23,663 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:23,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:32:23,664 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:23,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:23,665 INFO L85 PathProgramCache]: Analyzing trace with hash -276931705, now seen corresponding path program 1 times [2024-11-23 18:32:23,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:23,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660811171] [2024-11-23 18:32:23,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:23,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 18:32:26,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:26,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660811171] [2024-11-23 18:32:26,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660811171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:26,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:26,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:32:26,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080147400] [2024-11-23 18:32:26,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:26,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:32:26,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:26,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:32:26,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:32:26,591 INFO L87 Difference]: Start difference. First operand 2456 states and 3041 transitions. Second operand has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:32:33,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:33,515 INFO L93 Difference]: Finished difference Result 5566 states and 6995 transitions. [2024-11-23 18:32:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:32:33,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 208 [2024-11-23 18:32:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:33,548 INFO L225 Difference]: With dead ends: 5566 [2024-11-23 18:32:33,548 INFO L226 Difference]: Without dead ends: 3115 [2024-11-23 18:32:33,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:32:33,586 INFO L435 NwaCegarLoop]: 3655 mSDtfsCounter, 3891 mSDsluCounter, 5596 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3891 SdHoareTripleChecker+Valid, 9251 SdHoareTripleChecker+Invalid, 2569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:33,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3891 Valid, 9251 Invalid, 2569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-23 18:32:33,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2024-11-23 18:32:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2979. [2024-11-23 18:32:33,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2478 states have (on average 1.1864406779661016) internal successors, (2940), 2508 states have internal predecessors, (2940), 423 states have call successors, (423), 77 states have call predecessors, (423), 77 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2024-11-23 18:32:33,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 3785 transitions. [2024-11-23 18:32:33,902 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 3785 transitions. Word has length 208 [2024-11-23 18:32:33,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:33,903 INFO L471 AbstractCegarLoop]: Abstraction has 2979 states and 3785 transitions. [2024-11-23 18:32:33,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:32:33,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 3785 transitions. [2024-11-23 18:32:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-23 18:32:33,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:33,918 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:33,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:32:33,919 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:33,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:33,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1847461033, now seen corresponding path program 1 times [2024-11-23 18:32:33,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:33,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948415420] [2024-11-23 18:32:33,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:33,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:36,245 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 18:32:36,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:36,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948415420] [2024-11-23 18:32:36,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948415420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:36,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:36,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:32:36,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080311759] [2024-11-23 18:32:36,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:36,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:32:36,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:36,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:32:36,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:32:36,252 INFO L87 Difference]: Start difference. First operand 2979 states and 3785 transitions. Second operand has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:32:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:41,331 INFO L93 Difference]: Finished difference Result 6465 states and 8276 transitions. [2024-11-23 18:32:41,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:32:41,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 209 [2024-11-23 18:32:41,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:41,365 INFO L225 Difference]: With dead ends: 6465 [2024-11-23 18:32:41,366 INFO L226 Difference]: Without dead ends: 3491 [2024-11-23 18:32:41,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:32:41,396 INFO L435 NwaCegarLoop]: 3532 mSDtfsCounter, 6685 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6685 SdHoareTripleChecker+Valid, 6261 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:41,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6685 Valid, 6261 Invalid, 2098 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [801 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-23 18:32:41,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3491 states. [2024-11-23 18:32:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3491 to 3353. [2024-11-23 18:32:41,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3353 states, 2754 states have (on average 1.2058823529411764) internal successors, (3321), 2793 states have internal predecessors, (3321), 500 states have call successors, (500), 98 states have call predecessors, (500), 98 states have return successors, (499), 481 states have call predecessors, (499), 499 states have call successors, (499) [2024-11-23 18:32:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3353 states to 3353 states and 4320 transitions. [2024-11-23 18:32:41,655 INFO L78 Accepts]: Start accepts. Automaton has 3353 states and 4320 transitions. Word has length 209 [2024-11-23 18:32:41,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:41,657 INFO L471 AbstractCegarLoop]: Abstraction has 3353 states and 4320 transitions. [2024-11-23 18:32:41,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:32:41,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3353 states and 4320 transitions. [2024-11-23 18:32:41,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 18:32:41,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:41,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:41,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:32:41,671 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:41,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:41,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1685043674, now seen corresponding path program 1 times [2024-11-23 18:32:41,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:41,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054511869] [2024-11-23 18:32:41,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:41,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:45,224 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 18:32:45,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:45,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054511869] [2024-11-23 18:32:45,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054511869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:45,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:45,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:32:45,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194689660] [2024-11-23 18:32:45,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:45,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:32:45,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:45,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:32:45,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:32:45,231 INFO L87 Difference]: Start difference. First operand 3353 states and 4320 transitions. Second operand has 5 states, 4 states have (on average 45.5) internal successors, (182), 5 states have internal predecessors, (182), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-23 18:32:49,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:49,917 INFO L93 Difference]: Finished difference Result 7075 states and 9180 transitions. [2024-11-23 18:32:49,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:32:49,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 45.5) internal successors, (182), 5 states have internal predecessors, (182), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 205 [2024-11-23 18:32:49,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:49,953 INFO L225 Difference]: With dead ends: 7075 [2024-11-23 18:32:49,953 INFO L226 Difference]: Without dead ends: 3727 [2024-11-23 18:32:49,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:32:49,979 INFO L435 NwaCegarLoop]: 3426 mSDtfsCounter, 5712 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5712 SdHoareTripleChecker+Valid, 6033 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:49,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5712 Valid, 6033 Invalid, 1914 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [581 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-23 18:32:49,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2024-11-23 18:32:50,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3725. [2024-11-23 18:32:50,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3725 states, 3029 states have (on average 1.2218553978210631) internal successors, (3701), 3074 states have internal predecessors, (3701), 577 states have call successors, (577), 118 states have call predecessors, (577), 118 states have return successors, (576), 556 states have call predecessors, (576), 576 states have call successors, (576) [2024-11-23 18:32:50,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3725 states to 3725 states and 4854 transitions. [2024-11-23 18:32:50,254 INFO L78 Accepts]: Start accepts. Automaton has 3725 states and 4854 transitions. Word has length 205 [2024-11-23 18:32:50,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:50,254 INFO L471 AbstractCegarLoop]: Abstraction has 3725 states and 4854 transitions. [2024-11-23 18:32:50,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 45.5) internal successors, (182), 5 states have internal predecessors, (182), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-23 18:32:50,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3725 states and 4854 transitions. [2024-11-23 18:32:50,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-23 18:32:50,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:50,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:50,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:32:50,264 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:50,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:50,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1779232255, now seen corresponding path program 1 times [2024-11-23 18:32:50,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:50,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333896631] [2024-11-23 18:32:50,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:50,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:52,084 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 18:32:52,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:52,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333896631] [2024-11-23 18:32:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333896631] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:32:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910603354] [2024-11-23 18:32:52,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:52,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:32:52,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:32:52,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:32:52,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:32:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:54,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 2846 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:32:54,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:32:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 18:32:54,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:32:54,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910603354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:54,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:32:54,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-23 18:32:54,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762476995] [2024-11-23 18:32:54,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:54,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:32:54,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:54,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:32:54,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:32:54,935 INFO L87 Difference]: Start difference. First operand 3725 states and 4854 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:32:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:58,655 INFO L93 Difference]: Finished difference Result 7682 states and 9997 transitions. [2024-11-23 18:32:58,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:32:58,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 208 [2024-11-23 18:32:58,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:58,690 INFO L225 Difference]: With dead ends: 7682 [2024-11-23 18:32:58,690 INFO L226 Difference]: Without dead ends: 3848 [2024-11-23 18:32:58,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:32:58,716 INFO L435 NwaCegarLoop]: 3604 mSDtfsCounter, 1465 mSDsluCounter, 6346 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 9950 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:58,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 9950 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-23 18:32:58,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3848 states. [2024-11-23 18:32:59,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3848 to 3712. [2024-11-23 18:32:59,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3712 states, 3021 states have (on average 1.2204568023833169) internal successors, (3687), 3066 states have internal predecessors, (3687), 572 states have call successors, (572), 118 states have call predecessors, (572), 118 states have return successors, (571), 551 states have call predecessors, (571), 571 states have call successors, (571) [2024-11-23 18:32:59,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3712 states to 3712 states and 4830 transitions. [2024-11-23 18:32:59,116 INFO L78 Accepts]: Start accepts. Automaton has 3712 states and 4830 transitions. Word has length 208 [2024-11-23 18:32:59,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:59,121 INFO L471 AbstractCegarLoop]: Abstraction has 3712 states and 4830 transitions. [2024-11-23 18:32:59,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:32:59,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3712 states and 4830 transitions. [2024-11-23 18:32:59,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-23 18:32:59,132 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:59,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:59,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:32:59,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:32:59,335 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:59,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:59,360 INFO L85 PathProgramCache]: Analyzing trace with hash -59740356, now seen corresponding path program 1 times [2024-11-23 18:32:59,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:59,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63101575] [2024-11-23 18:32:59,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:59,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:01,223 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 18:33:01,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:01,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63101575] [2024-11-23 18:33:01,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63101575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:33:01,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294521155] [2024-11-23 18:33:01,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:01,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:33:01,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:33:01,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:33:01,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:33:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:03,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 18:33:03,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:33:03,785 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-23 18:33:03,786 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:33:03,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294521155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:03,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:33:03,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-23 18:33:03,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058077679] [2024-11-23 18:33:03,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:03,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:33:03,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:03,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:33:03,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:33:03,789 INFO L87 Difference]: Start difference. First operand 3712 states and 4830 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:33:06,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:06,703 INFO L93 Difference]: Finished difference Result 7613 states and 9892 transitions. [2024-11-23 18:33:06,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:33:06,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 209 [2024-11-23 18:33:06,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:06,739 INFO L225 Difference]: With dead ends: 7613 [2024-11-23 18:33:06,739 INFO L226 Difference]: Without dead ends: 3840 [2024-11-23 18:33:06,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:33:06,773 INFO L435 NwaCegarLoop]: 3578 mSDtfsCounter, 1205 mSDsluCounter, 8716 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 12294 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:06,773 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 12294 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-23 18:33:06,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2024-11-23 18:33:07,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 3702. [2024-11-23 18:33:07,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3702 states, 3015 states have (on average 1.2192371475953565) internal successors, (3676), 3060 states have internal predecessors, (3676), 568 states have call successors, (568), 118 states have call predecessors, (568), 118 states have return successors, (567), 547 states have call predecessors, (567), 567 states have call successors, (567) [2024-11-23 18:33:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 4811 transitions. [2024-11-23 18:33:07,071 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 4811 transitions. Word has length 209 [2024-11-23 18:33:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:07,072 INFO L471 AbstractCegarLoop]: Abstraction has 3702 states and 4811 transitions. [2024-11-23 18:33:07,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:33:07,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 4811 transitions. [2024-11-23 18:33:07,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 18:33:07,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:07,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:07,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 18:33:07,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-23 18:33:07,283 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:07,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash 549106331, now seen corresponding path program 1 times [2024-11-23 18:33:07,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:07,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642587076] [2024-11-23 18:33:07,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:07,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 18:33:08,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:08,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642587076] [2024-11-23 18:33:08,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642587076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:33:08,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831915180] [2024-11-23 18:33:08,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:08,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:33:08,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:33:08,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:33:08,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 18:33:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:11,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 2850 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 18:33:11,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:33:11,444 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 18:33:11,444 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:33:11,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831915180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:11,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:33:11,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-23 18:33:11,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691426004] [2024-11-23 18:33:11,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:11,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:33:11,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:11,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:33:11,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:33:11,449 INFO L87 Difference]: Start difference. First operand 3702 states and 4811 transitions. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:33:14,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:14,632 INFO L93 Difference]: Finished difference Result 8202 states and 10659 transitions. [2024-11-23 18:33:14,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:33:14,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 210 [2024-11-23 18:33:14,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:14,656 INFO L225 Difference]: With dead ends: 8202 [2024-11-23 18:33:14,657 INFO L226 Difference]: Without dead ends: 4505 [2024-11-23 18:33:14,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:33:14,672 INFO L435 NwaCegarLoop]: 3936 mSDtfsCounter, 1718 mSDsluCounter, 7019 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 10955 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:14,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 10955 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-23 18:33:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4505 states. [2024-11-23 18:33:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4505 to 4176. [2024-11-23 18:33:14,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4176 states, 3357 states have (on average 1.2347333929103366) internal successors, (4145), 3413 states have internal predecessors, (4145), 676 states have call successors, (676), 141 states have call predecessors, (676), 142 states have return successors, (676), 651 states have call predecessors, (676), 675 states have call successors, (676) [2024-11-23 18:33:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 5497 transitions. [2024-11-23 18:33:14,917 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 5497 transitions. Word has length 210 [2024-11-23 18:33:14,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:14,918 INFO L471 AbstractCegarLoop]: Abstraction has 4176 states and 5497 transitions. [2024-11-23 18:33:14,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:33:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 5497 transitions. [2024-11-23 18:33:14,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 18:33:14,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:14,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:14,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 18:33:15,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:33:15,131 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:15,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:15,133 INFO L85 PathProgramCache]: Analyzing trace with hash -24421537, now seen corresponding path program 1 times [2024-11-23 18:33:15,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:15,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611115370] [2024-11-23 18:33:15,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:15,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 18:33:16,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:16,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611115370] [2024-11-23 18:33:16,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611115370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:33:16,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841362752] [2024-11-23 18:33:16,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:16,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:33:16,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:33:16,629 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:33:16,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 18:33:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:18,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 18:33:18,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:33:18,829 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 18:33:18,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:33:18,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841362752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:18,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:33:18,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-23 18:33:18,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185798341] [2024-11-23 18:33:18,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:18,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:33:18,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:18,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:33:18,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:33:18,831 INFO L87 Difference]: Start difference. First operand 4176 states and 5497 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:33:21,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:21,169 INFO L93 Difference]: Finished difference Result 8349 states and 11000 transitions. [2024-11-23 18:33:21,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:33:21,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 210 [2024-11-23 18:33:21,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:21,220 INFO L225 Difference]: With dead ends: 8349 [2024-11-23 18:33:21,220 INFO L226 Difference]: Without dead ends: 4178 [2024-11-23 18:33:21,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:33:21,258 INFO L435 NwaCegarLoop]: 2953 mSDtfsCounter, 1039 mSDsluCounter, 5769 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 8722 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:21,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 8722 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-23 18:33:21,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2024-11-23 18:33:21,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 4176. [2024-11-23 18:33:21,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4176 states, 3357 states have (on average 1.2344355078939528) internal successors, (4144), 3413 states have internal predecessors, (4144), 676 states have call successors, (676), 141 states have call predecessors, (676), 142 states have return successors, (676), 651 states have call predecessors, (676), 675 states have call successors, (676) [2024-11-23 18:33:21,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 5496 transitions. [2024-11-23 18:33:21,658 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 5496 transitions. Word has length 210 [2024-11-23 18:33:21,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:21,659 INFO L471 AbstractCegarLoop]: Abstraction has 4176 states and 5496 transitions. [2024-11-23 18:33:21,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:33:21,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 5496 transitions. [2024-11-23 18:33:21,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-23 18:33:21,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:21,669 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:21,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 18:33:21,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:33:21,870 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:21,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:21,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1723333477, now seen corresponding path program 1 times [2024-11-23 18:33:21,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:21,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525581574] [2024-11-23 18:33:21,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:21,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:23,575 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 18:33:23,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:23,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525581574] [2024-11-23 18:33:23,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525581574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:23,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:23,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:33:23,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80790421] [2024-11-23 18:33:23,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:23,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:33:23,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:23,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:33:23,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:33:23,581 INFO L87 Difference]: Start difference. First operand 4176 states and 5496 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-23 18:33:28,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:28,458 INFO L93 Difference]: Finished difference Result 7867 states and 10296 transitions. [2024-11-23 18:33:28,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:33:28,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 220 [2024-11-23 18:33:28,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:28,495 INFO L225 Difference]: With dead ends: 7867 [2024-11-23 18:33:28,495 INFO L226 Difference]: Without dead ends: 3696 [2024-11-23 18:33:28,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:33:28,524 INFO L435 NwaCegarLoop]: 3496 mSDtfsCounter, 4661 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4661 SdHoareTripleChecker+Valid, 6950 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:28,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4661 Valid, 6950 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-23 18:33:28,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2024-11-23 18:33:28,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 3694. [2024-11-23 18:33:28,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 3010 states have (on average 1.217607973421927) internal successors, (3665), 3055 states have internal predecessors, (3665), 565 states have call successors, (565), 118 states have call predecessors, (565), 118 states have return successors, (564), 544 states have call predecessors, (564), 564 states have call successors, (564) [2024-11-23 18:33:28,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4794 transitions. [2024-11-23 18:33:28,778 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4794 transitions. Word has length 220 [2024-11-23 18:33:28,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:28,779 INFO L471 AbstractCegarLoop]: Abstraction has 3694 states and 4794 transitions. [2024-11-23 18:33:28,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-23 18:33:28,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4794 transitions. [2024-11-23 18:33:28,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-23 18:33:28,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:28,787 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:28,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:33:28,788 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:28,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:28,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1266910840, now seen corresponding path program 1 times [2024-11-23 18:33:28,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:28,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706506960] [2024-11-23 18:33:28,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:28,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 18:33:30,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706506960] [2024-11-23 18:33:30,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706506960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:30,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:30,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:33:30,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93749037] [2024-11-23 18:33:30,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:30,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:33:30,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:30,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:33:30,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:33:30,298 INFO L87 Difference]: Start difference. First operand 3694 states and 4794 transitions. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-23 18:33:35,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:35,894 INFO L93 Difference]: Finished difference Result 7385 states and 9593 transitions. [2024-11-23 18:33:35,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:33:35,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 220 [2024-11-23 18:33:35,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:35,923 INFO L225 Difference]: With dead ends: 7385 [2024-11-23 18:33:35,924 INFO L226 Difference]: Without dead ends: 3696 [2024-11-23 18:33:35,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:33:35,948 INFO L435 NwaCegarLoop]: 3402 mSDtfsCounter, 3636 mSDsluCounter, 5186 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3636 SdHoareTripleChecker+Valid, 8588 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:35,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3636 Valid, 8588 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-23 18:33:35,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2024-11-23 18:33:36,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 3694. [2024-11-23 18:33:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 3010 states have (on average 1.2172757475083056) internal successors, (3664), 3055 states have internal predecessors, (3664), 565 states have call successors, (565), 118 states have call predecessors, (565), 118 states have return successors, (564), 544 states have call predecessors, (564), 564 states have call successors, (564) [2024-11-23 18:33:36,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4793 transitions. [2024-11-23 18:33:36,201 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4793 transitions. Word has length 220 [2024-11-23 18:33:36,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:36,202 INFO L471 AbstractCegarLoop]: Abstraction has 3694 states and 4793 transitions. [2024-11-23 18:33:36,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-23 18:33:36,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4793 transitions. [2024-11-23 18:33:36,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-23 18:33:36,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:36,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:36,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:33:36,212 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:36,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:36,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2125021893, now seen corresponding path program 1 times [2024-11-23 18:33:36,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:36,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106784787] [2024-11-23 18:33:36,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:36,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 18:33:37,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:37,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106784787] [2024-11-23 18:33:37,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106784787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:37,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:37,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:33:37,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080608887] [2024-11-23 18:33:37,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:37,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:33:37,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:37,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:33:37,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:33:37,866 INFO L87 Difference]: Start difference. First operand 3694 states and 4793 transitions. Second operand has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 18:33:42,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:42,430 INFO L93 Difference]: Finished difference Result 7517 states and 9739 transitions. [2024-11-23 18:33:42,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:33:42,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 223 [2024-11-23 18:33:42,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:42,464 INFO L225 Difference]: With dead ends: 7517 [2024-11-23 18:33:42,465 INFO L226 Difference]: Without dead ends: 3828 [2024-11-23 18:33:42,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:33:42,490 INFO L435 NwaCegarLoop]: 3631 mSDtfsCounter, 6933 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6933 SdHoareTripleChecker+Valid, 6413 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:42,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6933 Valid, 6413 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-23 18:33:42,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3828 states. [2024-11-23 18:33:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3828 to 3692. [2024-11-23 18:33:42,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3692 states, 3009 states have (on average 1.217015619807245) internal successors, (3662), 3054 states have internal predecessors, (3662), 564 states have call successors, (564), 118 states have call predecessors, (564), 118 states have return successors, (563), 543 states have call predecessors, (563), 563 states have call successors, (563) [2024-11-23 18:33:42,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3692 states to 3692 states and 4789 transitions. [2024-11-23 18:33:42,743 INFO L78 Accepts]: Start accepts. Automaton has 3692 states and 4789 transitions. Word has length 223 [2024-11-23 18:33:42,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:42,743 INFO L471 AbstractCegarLoop]: Abstraction has 3692 states and 4789 transitions. [2024-11-23 18:33:42,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 18:33:42,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3692 states and 4789 transitions. [2024-11-23 18:33:42,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-23 18:33:42,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:42,752 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:42,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:33:42,752 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:42,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:42,753 INFO L85 PathProgramCache]: Analyzing trace with hash 829666504, now seen corresponding path program 1 times [2024-11-23 18:33:42,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:42,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937647241] [2024-11-23 18:33:42,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:42,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 18:33:44,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:44,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937647241] [2024-11-23 18:33:44,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937647241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:44,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:44,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:33:44,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963803700] [2024-11-23 18:33:44,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:44,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:33:44,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:44,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:33:44,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:33:44,408 INFO L87 Difference]: Start difference. First operand 3692 states and 4789 transitions. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 18:33:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:49,165 INFO L93 Difference]: Finished difference Result 7513 states and 9731 transitions. [2024-11-23 18:33:49,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:33:49,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 224 [2024-11-23 18:33:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:49,200 INFO L225 Difference]: With dead ends: 7513 [2024-11-23 18:33:49,201 INFO L226 Difference]: Without dead ends: 3826 [2024-11-23 18:33:49,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:33:49,236 INFO L435 NwaCegarLoop]: 3509 mSDtfsCounter, 3733 mSDsluCounter, 5440 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3733 SdHoareTripleChecker+Valid, 8949 SdHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:49,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3733 Valid, 8949 Invalid, 2321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-23 18:33:49,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3826 states. [2024-11-23 18:33:49,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3826 to 3688. [2024-11-23 18:33:49,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3688 states, 3007 states have (on average 1.2164948453608246) internal successors, (3658), 3052 states have internal predecessors, (3658), 562 states have call successors, (562), 118 states have call predecessors, (562), 118 states have return successors, (561), 541 states have call predecessors, (561), 561 states have call successors, (561) [2024-11-23 18:33:49,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3688 states to 3688 states and 4781 transitions. [2024-11-23 18:33:49,608 INFO L78 Accepts]: Start accepts. Automaton has 3688 states and 4781 transitions. Word has length 224 [2024-11-23 18:33:49,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:49,609 INFO L471 AbstractCegarLoop]: Abstraction has 3688 states and 4781 transitions. [2024-11-23 18:33:49,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 18:33:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 4781 transitions. [2024-11-23 18:33:49,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-23 18:33:49,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:49,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:49,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:33:49,618 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:49,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:49,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2138088427, now seen corresponding path program 1 times [2024-11-23 18:33:49,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:49,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562887484] [2024-11-23 18:33:49,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:49,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 18:33:51,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:51,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562887484] [2024-11-23 18:33:51,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562887484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:51,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:51,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:33:51,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118228261] [2024-11-23 18:33:51,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:51,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:33:51,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:51,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:33:51,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:33:51,065 INFO L87 Difference]: Start difference. First operand 3688 states and 4781 transitions. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 18:33:55,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:55,654 INFO L93 Difference]: Finished difference Result 7369 states and 9563 transitions. [2024-11-23 18:33:55,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:33:55,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 225 [2024-11-23 18:33:55,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:55,685 INFO L225 Difference]: With dead ends: 7369 [2024-11-23 18:33:55,685 INFO L226 Difference]: Without dead ends: 3686 [2024-11-23 18:33:55,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:33:55,709 INFO L435 NwaCegarLoop]: 3487 mSDtfsCounter, 5742 mSDsluCounter, 4481 mSDsCounter, 0 mSdLazyCounter, 2106 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5742 SdHoareTripleChecker+Valid, 7968 SdHoareTripleChecker+Invalid, 2655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 2106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:55,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5742 Valid, 7968 Invalid, 2655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 2106 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-23 18:33:55,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2024-11-23 18:33:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3684. [2024-11-23 18:33:55,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3684 states, 3005 states have (on average 1.2159733777038269) internal successors, (3654), 3050 states have internal predecessors, (3654), 560 states have call successors, (560), 118 states have call predecessors, (560), 118 states have return successors, (559), 539 states have call predecessors, (559), 559 states have call successors, (559) [2024-11-23 18:33:55,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 4773 transitions. [2024-11-23 18:33:55,946 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 4773 transitions. Word has length 225 [2024-11-23 18:33:55,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:55,947 INFO L471 AbstractCegarLoop]: Abstraction has 3684 states and 4773 transitions. [2024-11-23 18:33:55,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 18:33:55,947 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 4773 transitions. [2024-11-23 18:33:55,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-23 18:33:55,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:55,951 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:55,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 18:33:55,952 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:55,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:55,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1089274875, now seen corresponding path program 1 times [2024-11-23 18:33:55,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:55,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80854854] [2024-11-23 18:33:55,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:55,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 18:33:57,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:57,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80854854] [2024-11-23 18:33:57,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80854854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:57,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:57,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:33:57,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698145769] [2024-11-23 18:33:57,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:57,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:33:57,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:57,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:33:57,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:33:57,234 INFO L87 Difference]: Start difference. First operand 3684 states and 4773 transitions. Second operand has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 18:34:00,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:00,929 INFO L93 Difference]: Finished difference Result 7365 states and 9551 transitions. [2024-11-23 18:34:00,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:34:00,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 225 [2024-11-23 18:34:00,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:00,956 INFO L225 Difference]: With dead ends: 7365 [2024-11-23 18:34:00,956 INFO L226 Difference]: Without dead ends: 3686 [2024-11-23 18:34:00,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:34:00,980 INFO L435 NwaCegarLoop]: 3381 mSDtfsCounter, 6439 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6439 SdHoareTripleChecker+Valid, 5959 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:00,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6439 Valid, 5959 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [800 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-23 18:34:00,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2024-11-23 18:34:01,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3684. [2024-11-23 18:34:01,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3684 states, 3005 states have (on average 1.2156405990016639) internal successors, (3653), 3050 states have internal predecessors, (3653), 560 states have call successors, (560), 118 states have call predecessors, (560), 118 states have return successors, (559), 539 states have call predecessors, (559), 559 states have call successors, (559) [2024-11-23 18:34:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 4772 transitions. [2024-11-23 18:34:01,216 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 4772 transitions. Word has length 225 [2024-11-23 18:34:01,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:01,217 INFO L471 AbstractCegarLoop]: Abstraction has 3684 states and 4772 transitions. [2024-11-23 18:34:01,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 18:34:01,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 4772 transitions. [2024-11-23 18:34:01,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-23 18:34:01,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:01,222 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:01,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:34:01,223 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:01,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:01,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1863081998, now seen corresponding path program 1 times [2024-11-23 18:34:01,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:01,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951012375] [2024-11-23 18:34:01,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:01,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:02,435 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 18:34:02,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:02,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951012375] [2024-11-23 18:34:02,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951012375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:02,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:02,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:34:02,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164139570] [2024-11-23 18:34:02,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:02,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:34:02,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:02,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:34:02,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:02,437 INFO L87 Difference]: Start difference. First operand 3684 states and 4772 transitions. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 4 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-23 18:34:06,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:06,847 INFO L93 Difference]: Finished difference Result 7497 states and 9697 transitions. [2024-11-23 18:34:06,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:34:06,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 4 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 228 [2024-11-23 18:34:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:06,872 INFO L225 Difference]: With dead ends: 7497 [2024-11-23 18:34:06,872 INFO L226 Difference]: Without dead ends: 3818 [2024-11-23 18:34:06,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:34:06,896 INFO L435 NwaCegarLoop]: 3610 mSDtfsCounter, 5797 mSDsluCounter, 4566 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5797 SdHoareTripleChecker+Valid, 8176 SdHoareTripleChecker+Invalid, 2512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:06,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5797 Valid, 8176 Invalid, 2512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-23 18:34:06,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2024-11-23 18:34:07,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3682. [2024-11-23 18:34:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3682 states, 3004 states have (on average 1.2153794940079894) internal successors, (3651), 3049 states have internal predecessors, (3651), 559 states have call successors, (559), 118 states have call predecessors, (559), 118 states have return successors, (558), 538 states have call predecessors, (558), 558 states have call successors, (558) [2024-11-23 18:34:07,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 4768 transitions. [2024-11-23 18:34:07,280 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 4768 transitions. Word has length 228 [2024-11-23 18:34:07,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:07,281 INFO L471 AbstractCegarLoop]: Abstraction has 3682 states and 4768 transitions. [2024-11-23 18:34:07,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 4 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-23 18:34:07,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 4768 transitions. [2024-11-23 18:34:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-23 18:34:07,286 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:07,286 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:07,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 18:34:07,287 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:07,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:07,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1977354724, now seen corresponding path program 1 times [2024-11-23 18:34:07,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:07,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552706056] [2024-11-23 18:34:07,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:07,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:08,369 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 18:34:08,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:08,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552706056] [2024-11-23 18:34:08,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552706056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:08,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:08,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:34:08,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352025488] [2024-11-23 18:34:08,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:08,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:34:08,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:08,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:34:08,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:08,371 INFO L87 Difference]: Start difference. First operand 3682 states and 4768 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 4 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-23 18:34:12,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:12,769 INFO L93 Difference]: Finished difference Result 7493 states and 9689 transitions. [2024-11-23 18:34:12,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:34:12,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 4 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 229 [2024-11-23 18:34:12,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:12,791 INFO L225 Difference]: With dead ends: 7493 [2024-11-23 18:34:12,792 INFO L226 Difference]: Without dead ends: 3816 [2024-11-23 18:34:12,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:34:12,814 INFO L435 NwaCegarLoop]: 3501 mSDtfsCounter, 5702 mSDsluCounter, 4541 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5702 SdHoareTripleChecker+Valid, 8042 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:12,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5702 Valid, 8042 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 1981 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-23 18:34:12,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3816 states. [2024-11-23 18:34:12,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3816 to 3678. [2024-11-23 18:34:13,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3678 states, 3002 states have (on average 1.2148567621585609) internal successors, (3647), 3047 states have internal predecessors, (3647), 557 states have call successors, (557), 118 states have call predecessors, (557), 118 states have return successors, (556), 536 states have call predecessors, (556), 556 states have call successors, (556) [2024-11-23 18:34:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 4760 transitions. [2024-11-23 18:34:13,036 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 4760 transitions. Word has length 229 [2024-11-23 18:34:13,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:13,037 INFO L471 AbstractCegarLoop]: Abstraction has 3678 states and 4760 transitions. [2024-11-23 18:34:13,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 4 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-23 18:34:13,038 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 4760 transitions. [2024-11-23 18:34:13,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-23 18:34:13,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:13,042 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:13,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 18:34:13,042 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:13,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:13,043 INFO L85 PathProgramCache]: Analyzing trace with hash -479203884, now seen corresponding path program 1 times [2024-11-23 18:34:13,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:13,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875027203] [2024-11-23 18:34:13,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:13,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-23 18:34:14,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:14,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875027203] [2024-11-23 18:34:14,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875027203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:14,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:14,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:34:14,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63485975] [2024-11-23 18:34:14,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:14,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:34:14,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:14,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:34:14,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:14,470 INFO L87 Difference]: Start difference. First operand 3678 states and 4760 transitions. Second operand has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 4 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-23 18:34:19,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:19,403 INFO L93 Difference]: Finished difference Result 7349 states and 9521 transitions. [2024-11-23 18:34:19,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:34:19,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 4 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 230 [2024-11-23 18:34:19,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:19,421 INFO L225 Difference]: With dead ends: 7349 [2024-11-23 18:34:19,421 INFO L226 Difference]: Without dead ends: 3676 [2024-11-23 18:34:19,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:34:19,437 INFO L435 NwaCegarLoop]: 3479 mSDtfsCounter, 5725 mSDsluCounter, 4473 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5725 SdHoareTripleChecker+Valid, 7952 SdHoareTripleChecker+Invalid, 2642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:19,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5725 Valid, 7952 Invalid, 2642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-23 18:34:19,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2024-11-23 18:34:19,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3674. [2024-11-23 18:34:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3000 states have (on average 1.2143333333333333) internal successors, (3643), 3045 states have internal predecessors, (3643), 555 states have call successors, (555), 118 states have call predecessors, (555), 118 states have return successors, (554), 534 states have call predecessors, (554), 554 states have call successors, (554) [2024-11-23 18:34:19,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 4752 transitions. [2024-11-23 18:34:19,671 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 4752 transitions. Word has length 230 [2024-11-23 18:34:19,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:19,672 INFO L471 AbstractCegarLoop]: Abstraction has 3674 states and 4752 transitions. [2024-11-23 18:34:19,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 4 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-23 18:34:19,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 4752 transitions. [2024-11-23 18:34:19,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-23 18:34:19,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:19,676 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:19,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 18:34:19,677 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:19,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:19,678 INFO L85 PathProgramCache]: Analyzing trace with hash -678715963, now seen corresponding path program 1 times [2024-11-23 18:34:19,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:19,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331091311] [2024-11-23 18:34:19,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:19,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:21,159 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 18:34:21,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:21,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331091311] [2024-11-23 18:34:21,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331091311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:21,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:21,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:34:21,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491432390] [2024-11-23 18:34:21,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:21,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:34:21,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:21,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:34:21,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:34:21,162 INFO L87 Difference]: Start difference. First operand 3674 states and 4752 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 18:34:22,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:22,461 INFO L93 Difference]: Finished difference Result 7345 states and 9508 transitions. [2024-11-23 18:34:22,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:34:22,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 230 [2024-11-23 18:34:22,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:22,488 INFO L225 Difference]: With dead ends: 7345 [2024-11-23 18:34:22,488 INFO L226 Difference]: Without dead ends: 3676 [2024-11-23 18:34:22,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:22,513 INFO L435 NwaCegarLoop]: 2937 mSDtfsCounter, 1003 mSDsluCounter, 7755 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 10692 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:22,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 10692 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 18:34:22,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2024-11-23 18:34:22,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3674. [2024-11-23 18:34:22,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3000 states have (on average 1.214) internal successors, (3642), 3045 states have internal predecessors, (3642), 555 states have call successors, (555), 118 states have call predecessors, (555), 118 states have return successors, (554), 534 states have call predecessors, (554), 554 states have call successors, (554) [2024-11-23 18:34:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 4751 transitions. [2024-11-23 18:34:22,737 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 4751 transitions. Word has length 230 [2024-11-23 18:34:22,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:22,738 INFO L471 AbstractCegarLoop]: Abstraction has 3674 states and 4751 transitions. [2024-11-23 18:34:22,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 18:34:22,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 4751 transitions. [2024-11-23 18:34:22,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-23 18:34:22,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:22,743 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:22,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 18:34:22,743 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:22,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:22,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1867703998, now seen corresponding path program 1 times [2024-11-23 18:34:22,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:22,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592944885] [2024-11-23 18:34:22,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:22,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 18:34:24,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:24,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592944885] [2024-11-23 18:34:24,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592944885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:24,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:24,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:34:24,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728557302] [2024-11-23 18:34:24,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:24,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:34:24,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:24,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:34:24,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:34:24,023 INFO L87 Difference]: Start difference. First operand 3674 states and 4751 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 18:34:25,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:25,191 INFO L93 Difference]: Finished difference Result 7477 states and 9654 transitions. [2024-11-23 18:34:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:34:25,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 233 [2024-11-23 18:34:25,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:25,209 INFO L225 Difference]: With dead ends: 7477 [2024-11-23 18:34:25,209 INFO L226 Difference]: Without dead ends: 3808 [2024-11-23 18:34:25,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:25,225 INFO L435 NwaCegarLoop]: 3013 mSDtfsCounter, 2387 mSDsluCounter, 5664 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2387 SdHoareTripleChecker+Valid, 8677 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:25,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2387 Valid, 8677 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:34:25,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2024-11-23 18:34:25,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3672. [2024-11-23 18:34:25,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 2999 states have (on average 1.2137379126375458) internal successors, (3640), 3044 states have internal predecessors, (3640), 554 states have call successors, (554), 118 states have call predecessors, (554), 118 states have return successors, (553), 533 states have call predecessors, (553), 553 states have call successors, (553) [2024-11-23 18:34:25,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 4747 transitions. [2024-11-23 18:34:25,446 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 4747 transitions. Word has length 233 [2024-11-23 18:34:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:25,447 INFO L471 AbstractCegarLoop]: Abstraction has 3672 states and 4747 transitions. [2024-11-23 18:34:25,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 18:34:25,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 4747 transitions. [2024-11-23 18:34:25,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-23 18:34:25,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:25,451 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:25,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 18:34:25,452 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:25,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash -653241803, now seen corresponding path program 1 times [2024-11-23 18:34:25,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:25,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573137480] [2024-11-23 18:34:25,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:25,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 18:34:26,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:26,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573137480] [2024-11-23 18:34:26,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573137480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:26,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:26,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:34:26,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416118230] [2024-11-23 18:34:26,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:26,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:34:26,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:26,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:34:26,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:34:26,467 INFO L87 Difference]: Start difference. First operand 3672 states and 4747 transitions. Second operand has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 18:34:28,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:28,359 INFO L93 Difference]: Finished difference Result 7475 states and 9647 transitions. [2024-11-23 18:34:28,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:34:28,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 234 [2024-11-23 18:34:28,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:28,376 INFO L225 Difference]: With dead ends: 7475 [2024-11-23 18:34:28,376 INFO L226 Difference]: Without dead ends: 3808 [2024-11-23 18:34:28,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:28,392 INFO L435 NwaCegarLoop]: 2918 mSDtfsCounter, 4460 mSDsluCounter, 4045 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4460 SdHoareTripleChecker+Valid, 6963 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:28,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4460 Valid, 6963 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 18:34:28,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2024-11-23 18:34:28,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3670. [2024-11-23 18:34:28,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 2998 states have (on average 1.2134756504336224) internal successors, (3638), 3043 states have internal predecessors, (3638), 553 states have call successors, (553), 118 states have call predecessors, (553), 118 states have return successors, (552), 532 states have call predecessors, (552), 552 states have call successors, (552) [2024-11-23 18:34:28,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 4743 transitions. [2024-11-23 18:34:28,617 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 4743 transitions. Word has length 234 [2024-11-23 18:34:28,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:28,618 INFO L471 AbstractCegarLoop]: Abstraction has 3670 states and 4743 transitions. [2024-11-23 18:34:28,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 18:34:28,618 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 4743 transitions. [2024-11-23 18:34:28,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-23 18:34:28,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:28,622 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:28,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 18:34:28,623 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:28,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:28,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1379546332, now seen corresponding path program 1 times [2024-11-23 18:34:28,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:28,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683392613] [2024-11-23 18:34:28,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:28,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-23 18:34:29,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:29,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683392613] [2024-11-23 18:34:29,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683392613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:29,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:29,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:34:29,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390248766] [2024-11-23 18:34:29,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:29,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:34:29,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:29,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:34:29,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:34:29,662 INFO L87 Difference]: Start difference. First operand 3670 states and 4743 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 18:34:31,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:31,958 INFO L93 Difference]: Finished difference Result 7335 states and 9487 transitions. [2024-11-23 18:34:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:34:31,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 235 [2024-11-23 18:34:31,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:31,983 INFO L225 Difference]: With dead ends: 7335 [2024-11-23 18:34:31,983 INFO L226 Difference]: Without dead ends: 3670 [2024-11-23 18:34:32,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:32,007 INFO L435 NwaCegarLoop]: 3037 mSDtfsCounter, 4484 mSDsluCounter, 4136 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4484 SdHoareTripleChecker+Valid, 7173 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:32,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4484 Valid, 7173 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [533 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 18:34:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2024-11-23 18:34:32,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 3668. [2024-11-23 18:34:32,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 2997 states have (on average 1.2132132132132132) internal successors, (3636), 3042 states have internal predecessors, (3636), 552 states have call successors, (552), 118 states have call predecessors, (552), 118 states have return successors, (551), 531 states have call predecessors, (551), 551 states have call successors, (551) [2024-11-23 18:34:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 4739 transitions. [2024-11-23 18:34:32,306 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 4739 transitions. Word has length 235 [2024-11-23 18:34:32,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:32,307 INFO L471 AbstractCegarLoop]: Abstraction has 3668 states and 4739 transitions. [2024-11-23 18:34:32,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 18:34:32,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 4739 transitions. [2024-11-23 18:34:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-23 18:34:32,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:32,311 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:32,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 18:34:32,311 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:32,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:32,312 INFO L85 PathProgramCache]: Analyzing trace with hash -590976626, now seen corresponding path program 1 times [2024-11-23 18:34:32,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:32,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59874252] [2024-11-23 18:34:32,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:32,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-23 18:34:33,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:33,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59874252] [2024-11-23 18:34:33,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59874252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:33,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:33,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:34:33,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737195265] [2024-11-23 18:34:33,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:33,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:34:33,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:33,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:34:33,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:34:33,297 INFO L87 Difference]: Start difference. First operand 3668 states and 4739 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 18:34:34,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:34,573 INFO L93 Difference]: Finished difference Result 7333 states and 9482 transitions. [2024-11-23 18:34:34,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:34:34,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 235 [2024-11-23 18:34:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:34,597 INFO L225 Difference]: With dead ends: 7333 [2024-11-23 18:34:34,597 INFO L226 Difference]: Without dead ends: 3670 [2024-11-23 18:34:34,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:34,617 INFO L435 NwaCegarLoop]: 2924 mSDtfsCounter, 1754 mSDsluCounter, 5328 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 8252 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:34,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 8252 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 18:34:34,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2024-11-23 18:34:34,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 3668. [2024-11-23 18:34:34,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 2997 states have (on average 1.2128795462128796) internal successors, (3635), 3042 states have internal predecessors, (3635), 552 states have call successors, (552), 118 states have call predecessors, (552), 118 states have return successors, (551), 531 states have call predecessors, (551), 551 states have call successors, (551) [2024-11-23 18:34:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 4738 transitions. [2024-11-23 18:34:34,849 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 4738 transitions. Word has length 235 [2024-11-23 18:34:34,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:34,850 INFO L471 AbstractCegarLoop]: Abstraction has 3668 states and 4738 transitions. [2024-11-23 18:34:34,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 18:34:34,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 4738 transitions. [2024-11-23 18:34:34,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-23 18:34:34,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:34,853 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:34,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 18:34:34,853 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:34,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:34,854 INFO L85 PathProgramCache]: Analyzing trace with hash 680094405, now seen corresponding path program 1 times [2024-11-23 18:34:34,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:34,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643826675] [2024-11-23 18:34:34,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:34,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:35,849 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-23 18:34:35,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:35,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643826675] [2024-11-23 18:34:35,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643826675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:35,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:35,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:34:35,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818354976] [2024-11-23 18:34:35,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:35,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:34:35,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:35,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:34:35,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:34:35,852 INFO L87 Difference]: Start difference. First operand 3668 states and 4738 transitions. Second operand has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-23 18:34:37,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:37,732 INFO L93 Difference]: Finished difference Result 7465 states and 9628 transitions. [2024-11-23 18:34:37,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:34:37,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 238 [2024-11-23 18:34:37,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:37,760 INFO L225 Difference]: With dead ends: 7465 [2024-11-23 18:34:37,760 INFO L226 Difference]: Without dead ends: 3802 [2024-11-23 18:34:37,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:37,784 INFO L435 NwaCegarLoop]: 3000 mSDtfsCounter, 4280 mSDsluCounter, 4322 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4280 SdHoareTripleChecker+Valid, 7322 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:37,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4280 Valid, 7322 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 18:34:37,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2024-11-23 18:34:37,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3666. [2024-11-23 18:34:37,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 2996 states have (on average 1.2126168224299065) internal successors, (3633), 3041 states have internal predecessors, (3633), 551 states have call successors, (551), 118 states have call predecessors, (551), 118 states have return successors, (550), 530 states have call predecessors, (550), 550 states have call successors, (550) [2024-11-23 18:34:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 4734 transitions. [2024-11-23 18:34:37,988 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 4734 transitions. Word has length 238 [2024-11-23 18:34:37,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:37,989 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 4734 transitions. [2024-11-23 18:34:37,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-23 18:34:37,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 4734 transitions. [2024-11-23 18:34:37,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-23 18:34:37,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:37,992 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:37,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 18:34:37,992 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:37,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:37,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1841600878, now seen corresponding path program 1 times [2024-11-23 18:34:37,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:37,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258166853] [2024-11-23 18:34:37,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:37,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-23 18:34:38,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:38,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258166853] [2024-11-23 18:34:38,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258166853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:38,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:38,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:34:38,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399932905] [2024-11-23 18:34:38,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:38,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:34:38,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:38,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:34:38,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:34:38,955 INFO L87 Difference]: Start difference. First operand 3666 states and 4734 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-23 18:34:40,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:40,855 INFO L93 Difference]: Finished difference Result 7463 states and 9621 transitions. [2024-11-23 18:34:40,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:34:40,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 239 [2024-11-23 18:34:40,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:40,875 INFO L225 Difference]: With dead ends: 7463 [2024-11-23 18:34:40,875 INFO L226 Difference]: Without dead ends: 3802 [2024-11-23 18:34:40,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:40,891 INFO L435 NwaCegarLoop]: 2905 mSDtfsCounter, 4425 mSDsluCounter, 4031 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4425 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:40,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4425 Valid, 6936 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 18:34:40,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2024-11-23 18:34:41,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3664. [2024-11-23 18:34:41,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 2995 states have (on average 1.2123539232053422) internal successors, (3631), 3040 states have internal predecessors, (3631), 550 states have call successors, (550), 118 states have call predecessors, (550), 118 states have return successors, (549), 529 states have call predecessors, (549), 549 states have call successors, (549) [2024-11-23 18:34:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 4730 transitions. [2024-11-23 18:34:41,032 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 4730 transitions. Word has length 239 [2024-11-23 18:34:41,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:41,032 INFO L471 AbstractCegarLoop]: Abstraction has 3664 states and 4730 transitions. [2024-11-23 18:34:41,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-23 18:34:41,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 4730 transitions. [2024-11-23 18:34:41,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-23 18:34:41,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:41,036 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:41,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 18:34:41,036 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:41,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:41,036 INFO L85 PathProgramCache]: Analyzing trace with hash -549137941, now seen corresponding path program 1 times [2024-11-23 18:34:41,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:41,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58561461] [2024-11-23 18:34:41,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:41,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-23 18:34:42,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:42,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58561461] [2024-11-23 18:34:42,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58561461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:42,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:42,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:34:42,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690212583] [2024-11-23 18:34:42,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:42,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:34:42,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:42,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:34:42,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:34:42,158 INFO L87 Difference]: Start difference. First operand 3664 states and 4730 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-23 18:34:44,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:44,209 INFO L93 Difference]: Finished difference Result 7323 states and 9461 transitions. [2024-11-23 18:34:44,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:34:44,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 240 [2024-11-23 18:34:44,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:44,230 INFO L225 Difference]: With dead ends: 7323 [2024-11-23 18:34:44,230 INFO L226 Difference]: Without dead ends: 3664 [2024-11-23 18:34:44,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:44,247 INFO L435 NwaCegarLoop]: 3024 mSDtfsCounter, 4449 mSDsluCounter, 4122 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4449 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:44,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4449 Valid, 7146 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 18:34:44,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3664 states. [2024-11-23 18:34:44,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3664 to 3662. [2024-11-23 18:34:44,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3662 states, 2994 states have (on average 1.2120908483633934) internal successors, (3629), 3039 states have internal predecessors, (3629), 549 states have call successors, (549), 118 states have call predecessors, (549), 118 states have return successors, (548), 528 states have call predecessors, (548), 548 states have call successors, (548) [2024-11-23 18:34:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 4726 transitions. [2024-11-23 18:34:44,387 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 4726 transitions. Word has length 240 [2024-11-23 18:34:44,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:44,387 INFO L471 AbstractCegarLoop]: Abstraction has 3662 states and 4726 transitions. [2024-11-23 18:34:44,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-23 18:34:44,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 4726 transitions. [2024-11-23 18:34:44,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-23 18:34:44,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:44,391 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:44,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 18:34:44,391 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:44,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:44,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2101043483, now seen corresponding path program 1 times [2024-11-23 18:34:44,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:44,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946784870] [2024-11-23 18:34:44,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:44,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-23 18:34:45,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:45,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946784870] [2024-11-23 18:34:45,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946784870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:45,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:45,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:34:45,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858172349] [2024-11-23 18:34:45,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:45,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:34:45,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:45,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:34:45,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:45,351 INFO L87 Difference]: Start difference. First operand 3662 states and 4726 transitions. Second operand has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-23 18:34:49,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:49,209 INFO L93 Difference]: Finished difference Result 7319 states and 9455 transitions. [2024-11-23 18:34:49,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:34:49,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 240 [2024-11-23 18:34:49,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:49,242 INFO L225 Difference]: With dead ends: 7319 [2024-11-23 18:34:49,242 INFO L226 Difference]: Without dead ends: 3662 [2024-11-23 18:34:49,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:34:49,257 INFO L435 NwaCegarLoop]: 3449 mSDtfsCounter, 6542 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6542 SdHoareTripleChecker+Valid, 6070 SdHoareTripleChecker+Invalid, 2201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:49,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6542 Valid, 6070 Invalid, 2201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-23 18:34:49,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2024-11-23 18:34:49,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3660. [2024-11-23 18:34:49,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3660 states, 2993 states have (on average 1.2118275977280322) internal successors, (3627), 3038 states have internal predecessors, (3627), 548 states have call successors, (548), 118 states have call predecessors, (548), 118 states have return successors, (547), 527 states have call predecessors, (547), 547 states have call successors, (547) [2024-11-23 18:34:49,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 4722 transitions. [2024-11-23 18:34:49,480 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 4722 transitions. Word has length 240 [2024-11-23 18:34:49,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:49,480 INFO L471 AbstractCegarLoop]: Abstraction has 3660 states and 4722 transitions. [2024-11-23 18:34:49,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-23 18:34:49,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 4722 transitions. [2024-11-23 18:34:49,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-23 18:34:49,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:49,483 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:49,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 18:34:49,484 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:49,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:49,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1817397042, now seen corresponding path program 1 times [2024-11-23 18:34:49,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:49,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513872576] [2024-11-23 18:34:49,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:49,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-23 18:34:51,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:51,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513872576] [2024-11-23 18:34:51,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513872576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:51,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:51,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:34:51,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730217134] [2024-11-23 18:34:51,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:51,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:34:51,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:51,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:34:51,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:34:51,060 INFO L87 Difference]: Start difference. First operand 3660 states and 4722 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:34:51,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:51,496 INFO L93 Difference]: Finished difference Result 5512 states and 7125 transitions. [2024-11-23 18:34:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:34:51,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 240 [2024-11-23 18:34:51,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:51,528 INFO L225 Difference]: With dead ends: 5512 [2024-11-23 18:34:51,528 INFO L226 Difference]: Without dead ends: 5510 [2024-11-23 18:34:51,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:34:51,533 INFO L435 NwaCegarLoop]: 3797 mSDtfsCounter, 2991 mSDsluCounter, 9588 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2993 SdHoareTripleChecker+Valid, 13385 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:51,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2993 Valid, 13385 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:34:51,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5510 states. [2024-11-23 18:34:51,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5510 to 4059. [2024-11-23 18:34:51,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4059 states, 3284 states have (on average 1.2265529841656517) internal successors, (4028), 3340 states have internal predecessors, (4028), 637 states have call successors, (637), 137 states have call predecessors, (637), 137 states have return successors, (636), 611 states have call predecessors, (636), 636 states have call successors, (636) [2024-11-23 18:34:51,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4059 states to 4059 states and 5301 transitions. [2024-11-23 18:34:51,819 INFO L78 Accepts]: Start accepts. Automaton has 4059 states and 5301 transitions. Word has length 240 [2024-11-23 18:34:51,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:51,820 INFO L471 AbstractCegarLoop]: Abstraction has 4059 states and 5301 transitions. [2024-11-23 18:34:51,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:34:51,820 INFO L276 IsEmpty]: Start isEmpty. Operand 4059 states and 5301 transitions. [2024-11-23 18:34:51,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-23 18:34:51,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:51,828 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:51,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 18:34:51,829 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:51,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:51,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1772758690, now seen corresponding path program 1 times [2024-11-23 18:34:51,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:51,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635653272] [2024-11-23 18:34:51,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:51,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-23 18:34:53,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:53,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635653272] [2024-11-23 18:34:53,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635653272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:53,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:53,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:34:53,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482913805] [2024-11-23 18:34:53,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:53,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:34:53,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:53,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:34:53,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:53,286 INFO L87 Difference]: Start difference. First operand 4059 states and 5301 transitions. Second operand has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-23 18:34:57,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:57,460 INFO L93 Difference]: Finished difference Result 8112 states and 10602 transitions. [2024-11-23 18:34:57,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:34:57,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 332 [2024-11-23 18:34:57,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:57,480 INFO L225 Difference]: With dead ends: 8112 [2024-11-23 18:34:57,480 INFO L226 Difference]: Without dead ends: 4058 [2024-11-23 18:34:57,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:34:57,500 INFO L435 NwaCegarLoop]: 3444 mSDtfsCounter, 4597 mSDsluCounter, 3419 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4597 SdHoareTripleChecker+Valid, 6863 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:57,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4597 Valid, 6863 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-23 18:34:57,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4058 states. [2024-11-23 18:34:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4058 to 4056. [2024-11-23 18:34:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 3282 states have (on average 1.2260816575258988) internal successors, (4024), 3338 states have internal predecessors, (4024), 636 states have call successors, (636), 137 states have call predecessors, (636), 137 states have return successors, (635), 610 states have call predecessors, (635), 635 states have call successors, (635) [2024-11-23 18:34:57,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 5295 transitions. [2024-11-23 18:34:57,688 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 5295 transitions. Word has length 332 [2024-11-23 18:34:57,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:57,689 INFO L471 AbstractCegarLoop]: Abstraction has 4056 states and 5295 transitions. [2024-11-23 18:34:57,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-23 18:34:57,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 5295 transitions. [2024-11-23 18:34:57,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-23 18:34:57,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:57,694 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:57,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 18:34:57,694 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:57,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:57,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1870462995, now seen corresponding path program 1 times [2024-11-23 18:34:57,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:57,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343934797] [2024-11-23 18:34:57,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:57,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-23 18:34:59,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:59,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343934797] [2024-11-23 18:34:59,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343934797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:59,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:59,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:34:59,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104100408] [2024-11-23 18:34:59,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:59,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:34:59,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:59,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:34:59,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:34:59,061 INFO L87 Difference]: Start difference. First operand 4056 states and 5295 transitions. Second operand has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-23 18:35:02,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:02,975 INFO L93 Difference]: Finished difference Result 8241 states and 10743 transitions. [2024-11-23 18:35:02,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:35:02,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 335 [2024-11-23 18:35:02,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:03,010 INFO L225 Difference]: With dead ends: 8241 [2024-11-23 18:35:03,010 INFO L226 Difference]: Without dead ends: 4190 [2024-11-23 18:35:03,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:35:03,029 INFO L435 NwaCegarLoop]: 3559 mSDtfsCounter, 6823 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6823 SdHoareTripleChecker+Valid, 6304 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 816 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:03,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6823 Valid, 6304 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [816 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-23 18:35:03,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2024-11-23 18:35:03,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 4054. [2024-11-23 18:35:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4054 states, 3281 states have (on average 1.2258457787259982) internal successors, (4022), 3337 states have internal predecessors, (4022), 635 states have call successors, (635), 137 states have call predecessors, (635), 137 states have return successors, (634), 609 states have call predecessors, (634), 634 states have call successors, (634) [2024-11-23 18:35:03,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4054 states to 4054 states and 5291 transitions. [2024-11-23 18:35:03,301 INFO L78 Accepts]: Start accepts. Automaton has 4054 states and 5291 transitions. Word has length 335 [2024-11-23 18:35:03,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:03,301 INFO L471 AbstractCegarLoop]: Abstraction has 4054 states and 5291 transitions. [2024-11-23 18:35:03,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-23 18:35:03,302 INFO L276 IsEmpty]: Start isEmpty. Operand 4054 states and 5291 transitions. [2024-11-23 18:35:03,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-23 18:35:03,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:03,307 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:03,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 18:35:03,307 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:03,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:03,308 INFO L85 PathProgramCache]: Analyzing trace with hash 913678059, now seen corresponding path program 1 times [2024-11-23 18:35:03,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:03,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372699747] [2024-11-23 18:35:03,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:03,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:04,691 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-23 18:35:04,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:04,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372699747] [2024-11-23 18:35:04,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372699747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:04,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:04,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:35:04,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507323976] [2024-11-23 18:35:04,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:04,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:35:04,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:04,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:35:04,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:04,693 INFO L87 Difference]: Start difference. First operand 4054 states and 5291 transitions. Second operand has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-23 18:35:09,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:09,191 INFO L93 Difference]: Finished difference Result 8237 states and 10737 transitions. [2024-11-23 18:35:09,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:35:09,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 336 [2024-11-23 18:35:09,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:09,214 INFO L225 Difference]: With dead ends: 8237 [2024-11-23 18:35:09,214 INFO L226 Difference]: Without dead ends: 4188 [2024-11-23 18:35:09,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:35:09,232 INFO L435 NwaCegarLoop]: 3467 mSDtfsCounter, 3692 mSDsluCounter, 5396 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3692 SdHoareTripleChecker+Valid, 8863 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:09,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3692 Valid, 8863 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 18:35:09,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4188 states. [2024-11-23 18:35:09,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4188 to 4050. [2024-11-23 18:35:09,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 3279 states have (on average 1.2253735895089966) internal successors, (4018), 3335 states have internal predecessors, (4018), 633 states have call successors, (633), 137 states have call predecessors, (633), 137 states have return successors, (632), 607 states have call predecessors, (632), 632 states have call successors, (632) [2024-11-23 18:35:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5283 transitions. [2024-11-23 18:35:09,519 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5283 transitions. Word has length 336 [2024-11-23 18:35:09,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:09,519 INFO L471 AbstractCegarLoop]: Abstraction has 4050 states and 5283 transitions. [2024-11-23 18:35:09,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-23 18:35:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5283 transitions. [2024-11-23 18:35:09,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-23 18:35:09,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:09,525 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:09,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 18:35:09,525 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:09,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:09,526 INFO L85 PathProgramCache]: Analyzing trace with hash -385929703, now seen corresponding path program 1 times [2024-11-23 18:35:09,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:09,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672066336] [2024-11-23 18:35:09,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:09,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-23 18:35:10,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:10,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672066336] [2024-11-23 18:35:10,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672066336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:10,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:10,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:10,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352583281] [2024-11-23 18:35:10,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:10,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:10,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:10,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:10,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:10,601 INFO L87 Difference]: Start difference. First operand 4050 states and 5283 transitions. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 18:35:12,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:12,060 INFO L93 Difference]: Finished difference Result 8094 states and 10565 transitions. [2024-11-23 18:35:12,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:12,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 337 [2024-11-23 18:35:12,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:12,090 INFO L225 Difference]: With dead ends: 8094 [2024-11-23 18:35:12,090 INFO L226 Difference]: Without dead ends: 4049 [2024-11-23 18:35:12,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:12,106 INFO L435 NwaCegarLoop]: 3410 mSDtfsCounter, 2060 mSDsluCounter, 5738 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 9148 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:12,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 9148 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 18:35:12,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4049 states. [2024-11-23 18:35:12,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4049 to 4047. [2024-11-23 18:35:12,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4047 states, 3277 states have (on average 1.224900823924321) internal successors, (4014), 3333 states have internal predecessors, (4014), 632 states have call successors, (632), 137 states have call predecessors, (632), 137 states have return successors, (631), 606 states have call predecessors, (631), 631 states have call successors, (631) [2024-11-23 18:35:12,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4047 states to 4047 states and 5277 transitions. [2024-11-23 18:35:12,268 INFO L78 Accepts]: Start accepts. Automaton has 4047 states and 5277 transitions. Word has length 337 [2024-11-23 18:35:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:12,268 INFO L471 AbstractCegarLoop]: Abstraction has 4047 states and 5277 transitions. [2024-11-23 18:35:12,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 18:35:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 4047 states and 5277 transitions. [2024-11-23 18:35:12,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-23 18:35:12,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:12,272 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:12,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-23 18:35:12,273 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:12,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:12,273 INFO L85 PathProgramCache]: Analyzing trace with hash 696553428, now seen corresponding path program 1 times [2024-11-23 18:35:12,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:12,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914444284] [2024-11-23 18:35:12,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:12,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-11-23 18:35:13,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:13,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914444284] [2024-11-23 18:35:13,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914444284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:13,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:13,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:13,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489772945] [2024-11-23 18:35:13,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:13,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:13,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:13,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:13,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:13,380 INFO L87 Difference]: Start difference. First operand 4047 states and 5277 transitions. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 18:35:15,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:15,264 INFO L93 Difference]: Finished difference Result 8223 states and 10706 transitions. [2024-11-23 18:35:15,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:15,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 340 [2024-11-23 18:35:15,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:15,288 INFO L225 Difference]: With dead ends: 8223 [2024-11-23 18:35:15,288 INFO L226 Difference]: Without dead ends: 4181 [2024-11-23 18:35:15,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:15,306 INFO L435 NwaCegarLoop]: 2980 mSDtfsCounter, 4252 mSDsluCounter, 4300 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4252 SdHoareTripleChecker+Valid, 7280 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:15,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4252 Valid, 7280 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 18:35:15,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2024-11-23 18:35:15,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 4045. [2024-11-23 18:35:15,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4045 states, 3276 states have (on average 1.2246642246642248) internal successors, (4012), 3332 states have internal predecessors, (4012), 631 states have call successors, (631), 137 states have call predecessors, (631), 137 states have return successors, (630), 605 states have call predecessors, (630), 630 states have call successors, (630) [2024-11-23 18:35:15,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4045 states to 4045 states and 5273 transitions. [2024-11-23 18:35:15,492 INFO L78 Accepts]: Start accepts. Automaton has 4045 states and 5273 transitions. Word has length 340 [2024-11-23 18:35:15,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:15,493 INFO L471 AbstractCegarLoop]: Abstraction has 4045 states and 5273 transitions. [2024-11-23 18:35:15,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 18:35:15,493 INFO L276 IsEmpty]: Start isEmpty. Operand 4045 states and 5273 transitions. [2024-11-23 18:35:15,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-23 18:35:15,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:15,498 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:15,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-23 18:35:15,498 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:15,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:15,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1033653474, now seen corresponding path program 1 times [2024-11-23 18:35:15,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:15,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928051961] [2024-11-23 18:35:15,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:15,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-23 18:35:16,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:16,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928051961] [2024-11-23 18:35:16,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928051961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:16,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:16,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:16,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077726491] [2024-11-23 18:35:16,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:16,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:16,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:16,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:16,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:16,675 INFO L87 Difference]: Start difference. First operand 4045 states and 5273 transitions. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 18:35:17,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:17,826 INFO L93 Difference]: Finished difference Result 8221 states and 10699 transitions. [2024-11-23 18:35:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:17,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 341 [2024-11-23 18:35:17,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:17,861 INFO L225 Difference]: With dead ends: 8221 [2024-11-23 18:35:17,862 INFO L226 Difference]: Without dead ends: 4181 [2024-11-23 18:35:17,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:17,886 INFO L435 NwaCegarLoop]: 2884 mSDtfsCounter, 2460 mSDsluCounter, 5143 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 8027 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:17,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2460 Valid, 8027 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:35:17,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2024-11-23 18:35:18,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 4043. [2024-11-23 18:35:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4043 states, 3275 states have (on average 1.2244274809160305) internal successors, (4010), 3331 states have internal predecessors, (4010), 630 states have call successors, (630), 137 states have call predecessors, (630), 137 states have return successors, (629), 604 states have call predecessors, (629), 629 states have call successors, (629) [2024-11-23 18:35:18,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4043 states to 4043 states and 5269 transitions. [2024-11-23 18:35:18,163 INFO L78 Accepts]: Start accepts. Automaton has 4043 states and 5269 transitions. Word has length 341 [2024-11-23 18:35:18,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:18,164 INFO L471 AbstractCegarLoop]: Abstraction has 4043 states and 5269 transitions. [2024-11-23 18:35:18,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 18:35:18,164 INFO L276 IsEmpty]: Start isEmpty. Operand 4043 states and 5269 transitions. [2024-11-23 18:35:18,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-23 18:35:18,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:18,171 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:18,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-23 18:35:18,171 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:18,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:18,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1287543014, now seen corresponding path program 1 times [2024-11-23 18:35:18,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:18,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159872801] [2024-11-23 18:35:18,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:18,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-23 18:35:19,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:19,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159872801] [2024-11-23 18:35:19,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159872801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:19,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:19,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:19,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539285155] [2024-11-23 18:35:19,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:19,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:19,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:19,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:19,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:19,683 INFO L87 Difference]: Start difference. First operand 4043 states and 5269 transitions. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 18:35:21,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:21,320 INFO L93 Difference]: Finished difference Result 8080 states and 10537 transitions. [2024-11-23 18:35:21,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:21,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 342 [2024-11-23 18:35:21,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:21,343 INFO L225 Difference]: With dead ends: 8080 [2024-11-23 18:35:21,344 INFO L226 Difference]: Without dead ends: 4042 [2024-11-23 18:35:21,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:21,362 INFO L435 NwaCegarLoop]: 3397 mSDtfsCounter, 2025 mSDsluCounter, 5724 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 9121 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:21,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 9121 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 18:35:21,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4042 states. [2024-11-23 18:35:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 4040. [2024-11-23 18:35:21,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4040 states, 3273 states have (on average 1.2239535594256035) internal successors, (4006), 3329 states have internal predecessors, (4006), 629 states have call successors, (629), 137 states have call predecessors, (629), 137 states have return successors, (628), 603 states have call predecessors, (628), 628 states have call successors, (628) [2024-11-23 18:35:21,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 5263 transitions. [2024-11-23 18:35:21,640 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 5263 transitions. Word has length 342 [2024-11-23 18:35:21,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:21,641 INFO L471 AbstractCegarLoop]: Abstraction has 4040 states and 5263 transitions. [2024-11-23 18:35:21,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 18:35:21,642 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 5263 transitions. [2024-11-23 18:35:21,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-23 18:35:21,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:21,650 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:21,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-23 18:35:21,651 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:21,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:21,652 INFO L85 PathProgramCache]: Analyzing trace with hash -825884061, now seen corresponding path program 1 times [2024-11-23 18:35:21,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:21,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145153162] [2024-11-23 18:35:21,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:21,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-23 18:35:22,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:22,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145153162] [2024-11-23 18:35:22,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145153162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:22,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:22,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:22,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772994114] [2024-11-23 18:35:22,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:22,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:22,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:22,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:22,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:22,890 INFO L87 Difference]: Start difference. First operand 4040 states and 5263 transitions. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-23 18:35:24,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:24,263 INFO L93 Difference]: Finished difference Result 8209 states and 10678 transitions. [2024-11-23 18:35:24,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:24,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 345 [2024-11-23 18:35:24,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:24,286 INFO L225 Difference]: With dead ends: 8209 [2024-11-23 18:35:24,287 INFO L226 Difference]: Without dead ends: 4174 [2024-11-23 18:35:24,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:24,303 INFO L435 NwaCegarLoop]: 2967 mSDtfsCounter, 2325 mSDsluCounter, 5610 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2325 SdHoareTripleChecker+Valid, 8577 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:24,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2325 Valid, 8577 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 18:35:24,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4174 states. [2024-11-23 18:35:24,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4174 to 4038. [2024-11-23 18:35:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4038 states, 3272 states have (on average 1.223716381418093) internal successors, (4004), 3328 states have internal predecessors, (4004), 628 states have call successors, (628), 137 states have call predecessors, (628), 137 states have return successors, (627), 602 states have call predecessors, (627), 627 states have call successors, (627) [2024-11-23 18:35:24,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4038 states to 4038 states and 5259 transitions. [2024-11-23 18:35:24,512 INFO L78 Accepts]: Start accepts. Automaton has 4038 states and 5259 transitions. Word has length 345 [2024-11-23 18:35:24,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:24,512 INFO L471 AbstractCegarLoop]: Abstraction has 4038 states and 5259 transitions. [2024-11-23 18:35:24,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-23 18:35:24,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4038 states and 5259 transitions. [2024-11-23 18:35:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-23 18:35:24,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:24,517 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:24,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-23 18:35:24,517 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:24,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:24,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1736233965, now seen corresponding path program 1 times [2024-11-23 18:35:24,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:24,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627464899] [2024-11-23 18:35:24,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:24,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:25,512 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-23 18:35:25,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:25,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627464899] [2024-11-23 18:35:25,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627464899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:25,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:25,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:25,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077967916] [2024-11-23 18:35:25,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:25,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:25,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:25,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:25,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:25,514 INFO L87 Difference]: Start difference. First operand 4038 states and 5259 transitions. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-23 18:35:27,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:27,089 INFO L93 Difference]: Finished difference Result 8207 states and 10671 transitions. [2024-11-23 18:35:27,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:27,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 346 [2024-11-23 18:35:27,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:27,110 INFO L225 Difference]: With dead ends: 8207 [2024-11-23 18:35:27,110 INFO L226 Difference]: Without dead ends: 4174 [2024-11-23 18:35:27,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:27,126 INFO L435 NwaCegarLoop]: 2871 mSDtfsCounter, 4378 mSDsluCounter, 3998 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4378 SdHoareTripleChecker+Valid, 6869 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:27,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4378 Valid, 6869 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 18:35:27,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4174 states. [2024-11-23 18:35:27,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4174 to 4036. [2024-11-23 18:35:27,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 3271 states have (on average 1.223479058391929) internal successors, (4002), 3327 states have internal predecessors, (4002), 627 states have call successors, (627), 137 states have call predecessors, (627), 137 states have return successors, (626), 601 states have call predecessors, (626), 626 states have call successors, (626) [2024-11-23 18:35:27,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5255 transitions. [2024-11-23 18:35:27,280 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5255 transitions. Word has length 346 [2024-11-23 18:35:27,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:27,281 INFO L471 AbstractCegarLoop]: Abstraction has 4036 states and 5255 transitions. [2024-11-23 18:35:27,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-23 18:35:27,281 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5255 transitions. [2024-11-23 18:35:27,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-23 18:35:27,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:27,287 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:27,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-23 18:35:27,287 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:27,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash 364956265, now seen corresponding path program 1 times [2024-11-23 18:35:27,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:27,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788767329] [2024-11-23 18:35:27,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:27,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2024-11-23 18:35:28,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:28,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788767329] [2024-11-23 18:35:28,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788767329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:35:28,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300861248] [2024-11-23 18:35:28,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:28,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:35:28,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:35:28,464 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:35:28,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 18:35:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:31,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 3238 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 18:35:31,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:35:32,545 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 39 proven. 20 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-23 18:35:32,546 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:35:33,361 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-23 18:35:33,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300861248] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 18:35:33,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:35:33,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 6] total 11 [2024-11-23 18:35:33,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575515906] [2024-11-23 18:35:33,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:33,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:33,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:33,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:33,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:35:33,364 INFO L87 Difference]: Start difference. First operand 4036 states and 5255 transitions. Second operand has 5 states, 5 states have (on average 47.6) internal successors, (238), 4 states have internal predecessors, (238), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-23 18:35:33,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:33,911 INFO L93 Difference]: Finished difference Result 6681 states and 8649 transitions. [2024-11-23 18:35:33,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:33,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 4 states have internal predecessors, (238), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 347 [2024-11-23 18:35:33,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:33,943 INFO L225 Difference]: With dead ends: 6681 [2024-11-23 18:35:33,943 INFO L226 Difference]: Without dead ends: 6679 [2024-11-23 18:35:33,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:35:33,949 INFO L435 NwaCegarLoop]: 3927 mSDtfsCounter, 2956 mSDsluCounter, 10271 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2958 SdHoareTripleChecker+Valid, 14198 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:33,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2958 Valid, 14198 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:35:33,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2024-11-23 18:35:34,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 4036. [2024-11-23 18:35:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 3271 states have (on average 1.2231733414857842) internal successors, (4001), 3327 states have internal predecessors, (4001), 627 states have call successors, (627), 137 states have call predecessors, (627), 137 states have return successors, (626), 601 states have call predecessors, (626), 626 states have call successors, (626) [2024-11-23 18:35:34,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5254 transitions. [2024-11-23 18:35:34,164 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5254 transitions. Word has length 347 [2024-11-23 18:35:34,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:34,165 INFO L471 AbstractCegarLoop]: Abstraction has 4036 states and 5254 transitions. [2024-11-23 18:35:34,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 4 states have internal predecessors, (238), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-23 18:35:34,165 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5254 transitions. [2024-11-23 18:35:34,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-11-23 18:35:34,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:34,175 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:34,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 18:35:34,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-23 18:35:34,376 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:34,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:34,376 INFO L85 PathProgramCache]: Analyzing trace with hash 394095212, now seen corresponding path program 1 times [2024-11-23 18:35:34,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:34,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928454578] [2024-11-23 18:35:34,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:34,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-23 18:35:35,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:35,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928454578] [2024-11-23 18:35:35,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928454578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:35,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:35,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:35,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688046537] [2024-11-23 18:35:35,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:35,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:35,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:35,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:35,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:35,541 INFO L87 Difference]: Start difference. First operand 4036 states and 5254 transitions. Second operand has 5 states, 5 states have (on average 59.0) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-23 18:35:36,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:36,702 INFO L93 Difference]: Finished difference Result 8197 states and 10653 transitions. [2024-11-23 18:35:36,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:36,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.0) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 445 [2024-11-23 18:35:36,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:36,727 INFO L225 Difference]: With dead ends: 8197 [2024-11-23 18:35:36,727 INFO L226 Difference]: Without dead ends: 4166 [2024-11-23 18:35:36,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:36,744 INFO L435 NwaCegarLoop]: 3522 mSDtfsCounter, 1191 mSDsluCounter, 8113 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 11635 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:36,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 11635 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:35:36,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4166 states. [2024-11-23 18:35:36,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4166 to 4030. [2024-11-23 18:35:36,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4030 states, 3267 states have (on average 1.2225283134374043) internal successors, (3994), 3323 states have internal predecessors, (3994), 625 states have call successors, (625), 137 states have call predecessors, (625), 137 states have return successors, (624), 599 states have call predecessors, (624), 624 states have call successors, (624) [2024-11-23 18:35:36,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4030 states to 4030 states and 5243 transitions. [2024-11-23 18:35:36,937 INFO L78 Accepts]: Start accepts. Automaton has 4030 states and 5243 transitions. Word has length 445 [2024-11-23 18:35:36,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:36,937 INFO L471 AbstractCegarLoop]: Abstraction has 4030 states and 5243 transitions. [2024-11-23 18:35:36,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.0) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-23 18:35:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 4030 states and 5243 transitions. [2024-11-23 18:35:36,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-23 18:35:36,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:36,946 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:36,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-23 18:35:36,946 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:36,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:36,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1930561933, now seen corresponding path program 1 times [2024-11-23 18:35:36,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:36,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450230151] [2024-11-23 18:35:36,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:36,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-11-23 18:35:38,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:38,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450230151] [2024-11-23 18:35:38,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450230151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:38,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:38,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:38,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725321022] [2024-11-23 18:35:38,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:38,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:38,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:38,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:38,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:38,134 INFO L87 Difference]: Start difference. First operand 4030 states and 5243 transitions. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 3 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-11-23 18:35:40,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:40,158 INFO L93 Difference]: Finished difference Result 8189 states and 10638 transitions. [2024-11-23 18:35:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:40,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 3 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 448 [2024-11-23 18:35:40,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:40,180 INFO L225 Difference]: With dead ends: 8189 [2024-11-23 18:35:40,180 INFO L226 Difference]: Without dead ends: 4164 [2024-11-23 18:35:40,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:40,196 INFO L435 NwaCegarLoop]: 2950 mSDtfsCounter, 4212 mSDsluCounter, 4270 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4212 SdHoareTripleChecker+Valid, 7220 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:40,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4212 Valid, 7220 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 18:35:40,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2024-11-23 18:35:40,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 4028. [2024-11-23 18:35:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 3266 states have (on average 1.2222902633190447) internal successors, (3992), 3322 states have internal predecessors, (3992), 624 states have call successors, (624), 137 states have call predecessors, (624), 137 states have return successors, (623), 598 states have call predecessors, (623), 623 states have call successors, (623) [2024-11-23 18:35:40,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 5239 transitions. [2024-11-23 18:35:40,388 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 5239 transitions. Word has length 448 [2024-11-23 18:35:40,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:40,388 INFO L471 AbstractCegarLoop]: Abstraction has 4028 states and 5239 transitions. [2024-11-23 18:35:40,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 3 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-11-23 18:35:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 5239 transitions. [2024-11-23 18:35:40,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-23 18:35:40,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:40,399 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:40,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-23 18:35:40,399 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:40,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:40,399 INFO L85 PathProgramCache]: Analyzing trace with hash 734586126, now seen corresponding path program 1 times [2024-11-23 18:35:40,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:40,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893441938] [2024-11-23 18:35:40,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:40,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-23 18:35:41,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:41,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893441938] [2024-11-23 18:35:41,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893441938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:41,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:41,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:35:41,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126495858] [2024-11-23 18:35:41,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:41,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:35:41,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:41,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:35:41,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:41,902 INFO L87 Difference]: Start difference. First operand 4028 states and 5239 transitions. Second operand has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-11-23 18:35:45,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:45,415 INFO L93 Difference]: Finished difference Result 8181 states and 10624 transitions. [2024-11-23 18:35:45,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:35:45,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 449 [2024-11-23 18:35:45,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:45,443 INFO L225 Difference]: With dead ends: 8181 [2024-11-23 18:35:45,443 INFO L226 Difference]: Without dead ends: 4158 [2024-11-23 18:35:45,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:35:45,459 INFO L435 NwaCegarLoop]: 3417 mSDtfsCounter, 6517 mSDsluCounter, 2667 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6517 SdHoareTripleChecker+Valid, 6084 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:45,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6517 Valid, 6084 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [750 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-23 18:35:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4158 states. [2024-11-23 18:35:45,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4158 to 4022. [2024-11-23 18:35:45,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4022 states, 3262 states have (on average 1.2216431637032494) internal successors, (3985), 3318 states have internal predecessors, (3985), 622 states have call successors, (622), 137 states have call predecessors, (622), 137 states have return successors, (621), 596 states have call predecessors, (621), 621 states have call successors, (621) [2024-11-23 18:35:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4022 states to 4022 states and 5228 transitions. [2024-11-23 18:35:45,754 INFO L78 Accepts]: Start accepts. Automaton has 4022 states and 5228 transitions. Word has length 449 [2024-11-23 18:35:45,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:45,755 INFO L471 AbstractCegarLoop]: Abstraction has 4022 states and 5228 transitions. [2024-11-23 18:35:45,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-11-23 18:35:45,755 INFO L276 IsEmpty]: Start isEmpty. Operand 4022 states and 5228 transitions. [2024-11-23 18:35:45,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-23 18:35:45,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:45,765 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:45,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-23 18:35:45,766 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:45,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:45,766 INFO L85 PathProgramCache]: Analyzing trace with hash 68269151, now seen corresponding path program 1 times [2024-11-23 18:35:45,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:45,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715476222] [2024-11-23 18:35:45,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:45,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-23 18:35:46,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:46,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715476222] [2024-11-23 18:35:46,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715476222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:46,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:46,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:35:46,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858788228] [2024-11-23 18:35:46,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:46,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:35:46,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:46,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:35:46,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:46,946 INFO L87 Difference]: Start difference. First operand 4022 states and 5228 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-11-23 18:35:51,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:51,135 INFO L93 Difference]: Finished difference Result 8173 states and 10609 transitions. [2024-11-23 18:35:51,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:35:51,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 452 [2024-11-23 18:35:51,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:51,161 INFO L225 Difference]: With dead ends: 8173 [2024-11-23 18:35:51,161 INFO L226 Difference]: Without dead ends: 4156 [2024-11-23 18:35:51,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:35:51,178 INFO L435 NwaCegarLoop]: 3499 mSDtfsCounter, 5615 mSDsluCounter, 4456 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5615 SdHoareTripleChecker+Valid, 7955 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:51,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5615 Valid, 7955 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-23 18:35:51,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2024-11-23 18:35:51,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 4020. [2024-11-23 18:35:51,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 3261 states have (on average 1.2214044771542472) internal successors, (3983), 3317 states have internal predecessors, (3983), 621 states have call successors, (621), 137 states have call predecessors, (621), 137 states have return successors, (620), 595 states have call predecessors, (620), 620 states have call successors, (620) [2024-11-23 18:35:51,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 5224 transitions. [2024-11-23 18:35:51,383 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 5224 transitions. Word has length 452 [2024-11-23 18:35:51,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:51,384 INFO L471 AbstractCegarLoop]: Abstraction has 4020 states and 5224 transitions. [2024-11-23 18:35:51,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-11-23 18:35:51,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 5224 transitions. [2024-11-23 18:35:51,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-23 18:35:51,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:51,394 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:51,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-23 18:35:51,395 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:51,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:51,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1005069967, now seen corresponding path program 1 times [2024-11-23 18:35:51,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:51,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874057124] [2024-11-23 18:35:51,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:51,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-11-23 18:35:52,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:52,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874057124] [2024-11-23 18:35:52,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874057124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:52,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:52,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:52,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264185396] [2024-11-23 18:35:52,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:52,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:52,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:52,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:52,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:52,648 INFO L87 Difference]: Start difference. First operand 4020 states and 5224 transitions. Second operand has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-23 18:35:54,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:54,014 INFO L93 Difference]: Finished difference Result 8159 states and 10583 transitions. [2024-11-23 18:35:54,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:54,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 453 [2024-11-23 18:35:54,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:54,039 INFO L225 Difference]: With dead ends: 8159 [2024-11-23 18:35:54,039 INFO L226 Difference]: Without dead ends: 4144 [2024-11-23 18:35:54,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:54,055 INFO L435 NwaCegarLoop]: 3511 mSDtfsCounter, 2073 mSDsluCounter, 5804 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 9315 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:54,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2073 Valid, 9315 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 18:35:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4144 states. [2024-11-23 18:35:54,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4144 to 4008. [2024-11-23 18:35:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 3253 states have (on average 1.2201045189056257) internal successors, (3969), 3309 states have internal predecessors, (3969), 617 states have call successors, (617), 137 states have call predecessors, (617), 137 states have return successors, (616), 591 states have call predecessors, (616), 616 states have call successors, (616) [2024-11-23 18:35:54,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 5202 transitions. [2024-11-23 18:35:54,263 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 5202 transitions. Word has length 453 [2024-11-23 18:35:54,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:54,263 INFO L471 AbstractCegarLoop]: Abstraction has 4008 states and 5202 transitions. [2024-11-23 18:35:54,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-23 18:35:54,263 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 5202 transitions. [2024-11-23 18:35:54,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-23 18:35:54,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:54,269 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:54,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-23 18:35:54,269 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:54,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:54,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2082258214, now seen corresponding path program 1 times [2024-11-23 18:35:54,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:54,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082993530] [2024-11-23 18:35:54,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:54,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:55,570 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-11-23 18:35:55,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:55,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082993530] [2024-11-23 18:35:55,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082993530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:55,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:55,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:55,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712103561] [2024-11-23 18:35:55,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:55,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:55,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:55,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:55,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:55,573 INFO L87 Difference]: Start difference. First operand 4008 states and 5202 transitions. Second operand has 5 states, 5 states have (on average 59.0) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-23 18:35:57,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:57,424 INFO L93 Difference]: Finished difference Result 8143 states and 10553 transitions. [2024-11-23 18:35:57,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:57,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.0) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 456 [2024-11-23 18:35:57,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:57,452 INFO L225 Difference]: With dead ends: 8143 [2024-11-23 18:35:57,452 INFO L226 Difference]: Without dead ends: 4140 [2024-11-23 18:35:57,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:57,469 INFO L435 NwaCegarLoop]: 2939 mSDtfsCounter, 4137 mSDsluCounter, 4260 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 7199 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:57,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4137 Valid, 7199 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 18:35:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2024-11-23 18:35:57,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 4004. [2024-11-23 18:35:57,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4004 states, 3251 states have (on average 1.2196247308520456) internal successors, (3965), 3307 states have internal predecessors, (3965), 615 states have call successors, (615), 137 states have call predecessors, (615), 137 states have return successors, (614), 589 states have call predecessors, (614), 614 states have call successors, (614) [2024-11-23 18:35:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 5194 transitions. [2024-11-23 18:35:57,660 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 5194 transitions. Word has length 456 [2024-11-23 18:35:57,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:57,661 INFO L471 AbstractCegarLoop]: Abstraction has 4004 states and 5194 transitions. [2024-11-23 18:35:57,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.0) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-23 18:35:57,661 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 5194 transitions. [2024-11-23 18:35:57,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-23 18:35:57,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:57,670 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:57,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-23 18:35:57,671 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:57,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:57,671 INFO L85 PathProgramCache]: Analyzing trace with hash -785838668, now seen corresponding path program 1 times [2024-11-23 18:35:57,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:57,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42905485] [2024-11-23 18:35:57,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:57,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-11-23 18:35:58,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:58,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42905485] [2024-11-23 18:35:58,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42905485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:58,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:58,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:58,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563525397] [2024-11-23 18:35:58,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:58,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:58,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:58,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:58,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:58,940 INFO L87 Difference]: Start difference. First operand 4004 states and 5194 transitions. Second operand has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-23 18:36:00,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:00,092 INFO L93 Difference]: Finished difference Result 8127 states and 10523 transitions. [2024-11-23 18:36:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:36:00,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 457 [2024-11-23 18:36:00,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:00,119 INFO L225 Difference]: With dead ends: 8127 [2024-11-23 18:36:00,119 INFO L226 Difference]: Without dead ends: 4128 [2024-11-23 18:36:00,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:36:00,136 INFO L435 NwaCegarLoop]: 3498 mSDtfsCounter, 1125 mSDsluCounter, 8089 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 11587 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:00,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 11587 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:36:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2024-11-23 18:36:00,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 3992. [2024-11-23 18:36:00,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3992 states, 3243 states have (on average 1.2183163737280296) internal successors, (3951), 3299 states have internal predecessors, (3951), 611 states have call successors, (611), 137 states have call predecessors, (611), 137 states have return successors, (610), 585 states have call predecessors, (610), 610 states have call successors, (610) [2024-11-23 18:36:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3992 states to 3992 states and 5172 transitions. [2024-11-23 18:36:00,325 INFO L78 Accepts]: Start accepts. Automaton has 3992 states and 5172 transitions. Word has length 457 [2024-11-23 18:36:00,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:00,325 INFO L471 AbstractCegarLoop]: Abstraction has 3992 states and 5172 transitions. [2024-11-23 18:36:00,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-23 18:36:00,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3992 states and 5172 transitions. [2024-11-23 18:36:00,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-23 18:36:00,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:00,331 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:00,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-23 18:36:00,332 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:00,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:00,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1762895993, now seen corresponding path program 1 times [2024-11-23 18:36:00,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:00,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348080626] [2024-11-23 18:36:00,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:00,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:01,280 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-23 18:36:01,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:01,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348080626] [2024-11-23 18:36:01,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348080626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:01,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:01,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:36:01,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671304261] [2024-11-23 18:36:01,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:01,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:36:01,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:01,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:36:01,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:36:01,283 INFO L87 Difference]: Start difference. First operand 3992 states and 5172 transitions. Second operand has 5 states, 5 states have (on average 58.8) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-23 18:36:02,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:02,763 INFO L93 Difference]: Finished difference Result 8111 states and 10493 transitions. [2024-11-23 18:36:02,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:36:02,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 58.8) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 460 [2024-11-23 18:36:02,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:02,796 INFO L225 Difference]: With dead ends: 8111 [2024-11-23 18:36:02,796 INFO L226 Difference]: Without dead ends: 4124 [2024-11-23 18:36:02,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:36:02,815 INFO L435 NwaCegarLoop]: 2926 mSDtfsCounter, 2254 mSDsluCounter, 5570 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 8496 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:02,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 8496 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 18:36:02,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4124 states. [2024-11-23 18:36:03,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4124 to 3988. [2024-11-23 18:36:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3988 states, 3241 states have (on average 1.2178340018512805) internal successors, (3947), 3297 states have internal predecessors, (3947), 609 states have call successors, (609), 137 states have call predecessors, (609), 137 states have return successors, (608), 583 states have call predecessors, (608), 608 states have call successors, (608) [2024-11-23 18:36:03,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3988 states to 3988 states and 5164 transitions. [2024-11-23 18:36:03,144 INFO L78 Accepts]: Start accepts. Automaton has 3988 states and 5164 transitions. Word has length 460 [2024-11-23 18:36:03,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:03,145 INFO L471 AbstractCegarLoop]: Abstraction has 3988 states and 5164 transitions. [2024-11-23 18:36:03,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.8) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-23 18:36:03,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3988 states and 5164 transitions. [2024-11-23 18:36:03,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-23 18:36:03,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:03,152 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:03,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-23 18:36:03,153 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:03,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:03,153 INFO L85 PathProgramCache]: Analyzing trace with hash 230364359, now seen corresponding path program 1 times [2024-11-23 18:36:03,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:03,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134069841] [2024-11-23 18:36:03,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:03,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:04,667 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-23 18:36:04,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:04,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134069841] [2024-11-23 18:36:04,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134069841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:36:04,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587762337] [2024-11-23 18:36:04,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:04,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:36:04,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:36:04,670 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:36:04,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 18:36:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:07,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 3587 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 18:36:07,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:36:08,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-23 18:36:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-23 18:36:09,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:36:09,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587762337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:09,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:36:09,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2024-11-23 18:36:09,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274856442] [2024-11-23 18:36:09,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:09,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:36:09,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:09,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:36:09,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:36:09,429 INFO L87 Difference]: Start difference. First operand 3988 states and 5164 transitions. Second operand has 9 states, 9 states have (on average 33.111111111111114) internal successors, (298), 9 states have internal predecessors, (298), 3 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-23 18:36:14,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:36:23,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:36:23,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:23,541 INFO L93 Difference]: Finished difference Result 8580 states and 11143 transitions. [2024-11-23 18:36:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 18:36:23,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.111111111111114) internal successors, (298), 9 states have internal predecessors, (298), 3 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 461 [2024-11-23 18:36:23,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:23,570 INFO L225 Difference]: With dead ends: 8580 [2024-11-23 18:36:23,570 INFO L226 Difference]: Without dead ends: 4597 [2024-11-23 18:36:23,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-11-23 18:36:23,588 INFO L435 NwaCegarLoop]: 2844 mSDtfsCounter, 4018 mSDsluCounter, 9968 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 386 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4018 SdHoareTripleChecker+Valid, 12812 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:23,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4018 Valid, 12812 Invalid, 2116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [386 Valid, 1728 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2024-11-23 18:36:23,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4597 states. [2024-11-23 18:36:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4597 to 4461. [2024-11-23 18:36:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4461 states, 3588 states have (on average 1.2285395763656632) internal successors, (4408), 3654 states have internal predecessors, (4408), 709 states have call successors, (709), 163 states have call predecessors, (709), 163 states have return successors, (708), 679 states have call predecessors, (708), 708 states have call successors, (708) [2024-11-23 18:36:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4461 states to 4461 states and 5825 transitions. [2024-11-23 18:36:23,918 INFO L78 Accepts]: Start accepts. Automaton has 4461 states and 5825 transitions. Word has length 461 [2024-11-23 18:36:23,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:23,919 INFO L471 AbstractCegarLoop]: Abstraction has 4461 states and 5825 transitions. [2024-11-23 18:36:23,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.111111111111114) internal successors, (298), 9 states have internal predecessors, (298), 3 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-23 18:36:23,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4461 states and 5825 transitions. [2024-11-23 18:36:23,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-23 18:36:23,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:23,926 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:23,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 18:36:24,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:36:24,126 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:24,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:24,127 INFO L85 PathProgramCache]: Analyzing trace with hash -35678439, now seen corresponding path program 1 times [2024-11-23 18:36:24,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:24,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762328995] [2024-11-23 18:36:24,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:24,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:25,622 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-23 18:36:25,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:25,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762328995] [2024-11-23 18:36:25,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762328995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:36:25,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206622055] [2024-11-23 18:36:25,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:25,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:36:25,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:36:25,626 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:36:25,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 18:36:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:29,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 3713 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 18:36:29,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:36:30,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-23 18:36:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 70 proven. 37 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 18:36:32,031 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:36:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-23 18:36:34,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206622055] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 18:36:34,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:36:34,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 9] total 15 [2024-11-23 18:36:34,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918663245] [2024-11-23 18:36:34,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:34,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:36:34,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:34,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:36:34,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:36:34,061 INFO L87 Difference]: Start difference. First operand 4461 states and 5825 transitions. Second operand has 9 states, 9 states have (on average 36.44444444444444) internal successors, (328), 9 states have internal predecessors, (328), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-23 18:36:39,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:39,950 INFO L93 Difference]: Finished difference Result 9638 states and 12637 transitions. [2024-11-23 18:36:39,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 18:36:39,951 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 36.44444444444444) internal successors, (328), 9 states have internal predecessors, (328), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 501 [2024-11-23 18:36:39,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:39,984 INFO L225 Difference]: With dead ends: 9638 [2024-11-23 18:36:39,984 INFO L226 Difference]: Without dead ends: 5182 [2024-11-23 18:36:40,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1011 GetRequests, 990 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2024-11-23 18:36:40,003 INFO L435 NwaCegarLoop]: 3363 mSDtfsCounter, 6253 mSDsluCounter, 12131 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 1083 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6253 SdHoareTripleChecker+Valid, 15494 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1083 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:40,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6253 Valid, 15494 Invalid, 2150 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1083 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-23 18:36:40,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5182 states. [2024-11-23 18:36:40,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5182 to 5046. [2024-11-23 18:36:40,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5046 states, 4007 states have (on average 1.240578986773147) internal successors, (4971), 4083 states have internal predecessors, (4971), 844 states have call successors, (844), 194 states have call predecessors, (844), 194 states have return successors, (843), 810 states have call predecessors, (843), 843 states have call successors, (843) [2024-11-23 18:36:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5046 states to 5046 states and 6658 transitions. [2024-11-23 18:36:40,446 INFO L78 Accepts]: Start accepts. Automaton has 5046 states and 6658 transitions. Word has length 501 [2024-11-23 18:36:40,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:40,447 INFO L471 AbstractCegarLoop]: Abstraction has 5046 states and 6658 transitions. [2024-11-23 18:36:40,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 36.44444444444444) internal successors, (328), 9 states have internal predecessors, (328), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-23 18:36:40,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5046 states and 6658 transitions. [2024-11-23 18:36:40,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-23 18:36:40,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:40,454 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:40,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 18:36:40,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-23 18:36:40,655 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:40,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:40,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1060506745, now seen corresponding path program 1 times [2024-11-23 18:36:40,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:40,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978242465] [2024-11-23 18:36:40,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:40,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-23 18:36:42,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:42,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978242465] [2024-11-23 18:36:42,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978242465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:36:42,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122231261] [2024-11-23 18:36:42,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:42,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:36:42,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:36:42,057 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:36:42,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 18:36:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:46,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 3839 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 18:36:46,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:36:48,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-23 18:36:49,443 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 64 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-23 18:36:49,444 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:36:51,658 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-23 18:36:51,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122231261] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 18:36:51,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:36:51,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 9] total 15 [2024-11-23 18:36:51,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097619074] [2024-11-23 18:36:51,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:51,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:36:51,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:51,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:36:51,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:36:51,662 INFO L87 Difference]: Start difference. First operand 5046 states and 6658 transitions. Second operand has 9 states, 9 states have (on average 40.888888888888886) internal successors, (368), 9 states have internal predecessors, (368), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-23 18:36:55,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:55,067 INFO L93 Difference]: Finished difference Result 11062 states and 14665 transitions. [2024-11-23 18:36:55,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 18:36:55,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 40.888888888888886) internal successors, (368), 9 states have internal predecessors, (368), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 541 [2024-11-23 18:36:55,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:55,109 INFO L225 Difference]: With dead ends: 11062 [2024-11-23 18:36:55,109 INFO L226 Difference]: Without dead ends: 6021 [2024-11-23 18:36:55,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1091 GetRequests, 1070 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2024-11-23 18:36:55,134 INFO L435 NwaCegarLoop]: 3333 mSDtfsCounter, 3597 mSDsluCounter, 8931 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3597 SdHoareTripleChecker+Valid, 12264 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:55,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3597 Valid, 12264 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-23 18:36:55,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-11-23 18:36:55,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 5883. [2024-11-23 18:36:55,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 4622 states have (on average 1.2563825183903072) internal successors, (5807), 4719 states have internal predecessors, (5807), 1023 states have call successors, (1023), 237 states have call predecessors, (1023), 237 states have return successors, (1022), 980 states have call predecessors, (1022), 1022 states have call successors, (1022) [2024-11-23 18:36:55,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 7852 transitions. [2024-11-23 18:36:55,586 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 7852 transitions. Word has length 541 [2024-11-23 18:36:55,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:55,587 INFO L471 AbstractCegarLoop]: Abstraction has 5883 states and 7852 transitions. [2024-11-23 18:36:55,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.888888888888886) internal successors, (368), 9 states have internal predecessors, (368), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-23 18:36:55,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 7852 transitions. [2024-11-23 18:36:55,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2024-11-23 18:36:55,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:55,598 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:55,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 18:36:55,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-23 18:36:55,799 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:55,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:55,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1339022347, now seen corresponding path program 1 times [2024-11-23 18:36:55,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:55,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110954173] [2024-11-23 18:36:55,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:55,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-23 18:36:57,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110954173] [2024-11-23 18:36:57,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110954173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:36:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486380245] [2024-11-23 18:36:57,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:57,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:36:57,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:36:57,754 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:36:57,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 18:37:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:01,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 3965 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 18:37:02,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:37:03,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-23 18:37:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 70 proven. 37 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 18:37:04,164 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:37:05,708 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-23 18:37:05,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486380245] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 18:37:05,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:37:05,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 6] total 9 [2024-11-23 18:37:05,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64901525] [2024-11-23 18:37:05,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:37:05,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:37:05,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:37:05,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:37:05,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:37:05,712 INFO L87 Difference]: Start difference. First operand 5883 states and 7852 transitions. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-23 18:37:10,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:37:14,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:37:14,777 INFO L93 Difference]: Finished difference Result 17535 states and 23460 transitions. [2024-11-23 18:37:14,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:37:14,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 581 [2024-11-23 18:37:14,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:37:14,845 INFO L225 Difference]: With dead ends: 17535 [2024-11-23 18:37:14,845 INFO L226 Difference]: Without dead ends: 11657 [2024-11-23 18:37:14,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1167 GetRequests, 1156 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:37:14,877 INFO L435 NwaCegarLoop]: 3394 mSDtfsCounter, 5894 mSDsluCounter, 9385 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 1080 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5894 SdHoareTripleChecker+Valid, 12779 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1080 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:37:14,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5894 Valid, 12779 Invalid, 1410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1080 Valid, 329 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2024-11-23 18:37:14,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11657 states. [2024-11-23 18:37:15,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11657 to 7199. [2024-11-23 18:37:15,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7199 states, 5644 states have (on average 1.2583274273564848) internal successors, (7102), 5761 states have internal predecessors, (7102), 1261 states have call successors, (1261), 293 states have call predecessors, (1261), 293 states have return successors, (1260), 1210 states have call predecessors, (1260), 1260 states have call successors, (1260) [2024-11-23 18:37:15,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7199 states to 7199 states and 9623 transitions. [2024-11-23 18:37:15,554 INFO L78 Accepts]: Start accepts. Automaton has 7199 states and 9623 transitions. Word has length 581 [2024-11-23 18:37:15,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:37:15,555 INFO L471 AbstractCegarLoop]: Abstraction has 7199 states and 9623 transitions. [2024-11-23 18:37:15,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-23 18:37:15,555 INFO L276 IsEmpty]: Start isEmpty. Operand 7199 states and 9623 transitions. [2024-11-23 18:37:15,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2024-11-23 18:37:15,568 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:37:15,568 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:37:15,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 18:37:15,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-23 18:37:15,769 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:37:15,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:37:15,770 INFO L85 PathProgramCache]: Analyzing trace with hash 811541749, now seen corresponding path program 1 times [2024-11-23 18:37:15,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:37:15,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630251139] [2024-11-23 18:37:15,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:15,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:37:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:17,397 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-23 18:37:17,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:37:17,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630251139] [2024-11-23 18:37:17,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630251139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:37:17,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906230811] [2024-11-23 18:37:17,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:17,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:37:17,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:37:17,400 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:37:17,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 18:37:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:21,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 3965 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 18:37:21,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:37:23,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-23 18:37:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 64 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-23 18:37:24,601 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:37:26,472 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-23 18:37:26,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906230811] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 18:37:26,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:37:26,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 6] total 9 [2024-11-23 18:37:26,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710441810] [2024-11-23 18:37:26,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:37:26,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:37:26,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:37:26,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:37:26,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:37:26,474 INFO L87 Difference]: Start difference. First operand 7199 states and 9623 transitions. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-23 18:37:30,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:37:33,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:37:33,779 INFO L93 Difference]: Finished difference Result 21453 states and 28738 transitions. [2024-11-23 18:37:33,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:37:33,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 581 [2024-11-23 18:37:33,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:37:33,881 INFO L225 Difference]: With dead ends: 21453 [2024-11-23 18:37:33,881 INFO L226 Difference]: Without dead ends: 14259 [2024-11-23 18:37:33,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1167 GetRequests, 1156 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:37:33,922 INFO L435 NwaCegarLoop]: 3363 mSDtfsCounter, 3326 mSDsluCounter, 12025 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 251 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3326 SdHoareTripleChecker+Valid, 15388 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:37:33,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3326 Valid, 15388 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-11-23 18:37:33,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14259 states. [2024-11-23 18:37:34,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14259 to 10819. [2024-11-23 18:37:34,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10819 states, 8452 states have (on average 1.2631329862754377) internal successors, (10676), 8630 states have internal predecessors, (10676), 1918 states have call successors, (1918), 448 states have call predecessors, (1918), 448 states have return successors, (1917), 1842 states have call predecessors, (1917), 1917 states have call successors, (1917) [2024-11-23 18:37:35,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10819 states to 10819 states and 14511 transitions. [2024-11-23 18:37:35,027 INFO L78 Accepts]: Start accepts. Automaton has 10819 states and 14511 transitions. Word has length 581 [2024-11-23 18:37:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:37:35,028 INFO L471 AbstractCegarLoop]: Abstraction has 10819 states and 14511 transitions. [2024-11-23 18:37:35,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 4 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-23 18:37:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 10819 states and 14511 transitions. [2024-11-23 18:37:35,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2024-11-23 18:37:35,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:37:35,052 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:37:35,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 18:37:35,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-23 18:37:35,253 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:37:35,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:37:35,253 INFO L85 PathProgramCache]: Analyzing trace with hash -126622219, now seen corresponding path program 1 times [2024-11-23 18:37:35,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:37:35,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300950032] [2024-11-23 18:37:35,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:35,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:37:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-23 18:37:36,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:37:36,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300950032] [2024-11-23 18:37:36,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300950032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:37:36,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117878655] [2024-11-23 18:37:36,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:36,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:37:36,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:37:36,663 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:37:36,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 18:37:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:40,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 3965 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-23 18:37:40,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:37:43,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-23 18:37:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 64 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-23 18:37:44,507 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:37:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-23 18:37:48,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117878655] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 18:37:48,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:37:48,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 8] total 12 [2024-11-23 18:37:48,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758625044] [2024-11-23 18:37:48,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:37:48,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 18:37:48,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:37:48,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 18:37:48,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:37:48,537 INFO L87 Difference]: Start difference. First operand 10819 states and 14511 transitions. Second operand has 8 states, 8 states have (on average 52.0) internal successors, (416), 8 states have internal predecessors, (416), 5 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-23 18:38:06,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:38:06,305 INFO L93 Difference]: Finished difference Result 31152 states and 43362 transitions. [2024-11-23 18:38:06,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 18:38:06,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 52.0) internal successors, (416), 8 states have internal predecessors, (416), 5 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 581 [2024-11-23 18:38:06,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:38:06,456 INFO L225 Difference]: With dead ends: 31152 [2024-11-23 18:38:06,456 INFO L226 Difference]: Without dead ends: 20338 [2024-11-23 18:38:06,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1154 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2024-11-23 18:38:06,511 INFO L435 NwaCegarLoop]: 2979 mSDtfsCounter, 15237 mSDsluCounter, 7539 mSDsCounter, 0 mSdLazyCounter, 2348 mSolverCounterSat, 4679 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15249 SdHoareTripleChecker+Valid, 10518 SdHoareTripleChecker+Invalid, 7027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4679 IncrementalHoareTripleChecker+Valid, 2348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:38:06,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15249 Valid, 10518 Invalid, 7027 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4679 Valid, 2348 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2024-11-23 18:38:06,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20338 states. [2024-11-23 18:38:07,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20338 to 8263. [2024-11-23 18:38:07,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8263 states, 6372 states have (on average 1.271971123666039) internal successors, (8105), 6519 states have internal predecessors, (8105), 1534 states have call successors, (1534), 353 states have call predecessors, (1534), 356 states have return successors, (1752), 1474 states have call predecessors, (1752), 1533 states have call successors, (1752) [2024-11-23 18:38:07,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8263 states to 8263 states and 11391 transitions. [2024-11-23 18:38:07,661 INFO L78 Accepts]: Start accepts. Automaton has 8263 states and 11391 transitions. Word has length 581 [2024-11-23 18:38:07,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:38:07,661 INFO L471 AbstractCegarLoop]: Abstraction has 8263 states and 11391 transitions. [2024-11-23 18:38:07,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 52.0) internal successors, (416), 8 states have internal predecessors, (416), 5 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-23 18:38:07,662 INFO L276 IsEmpty]: Start isEmpty. Operand 8263 states and 11391 transitions. [2024-11-23 18:38:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2024-11-23 18:38:07,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:07,678 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:38:07,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 18:38:07,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:38:07,878 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:07,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:07,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1758235304, now seen corresponding path program 1 times [2024-11-23 18:38:07,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:07,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012900253] [2024-11-23 18:38:07,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:07,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:38:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:38:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-23 18:38:09,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:38:09,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012900253] [2024-11-23 18:38:09,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012900253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:38:09,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070879369] [2024-11-23 18:38:09,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:09,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:38:09,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:38:09,503 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:38:09,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 18:38:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:38:13,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 3967 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-23 18:38:13,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:38:15,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-23 18:38:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 70 proven. 37 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 18:38:15,699 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:38:19,066 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 39 proven. 30 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-23 18:38:19,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070879369] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:38:19,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:38:19,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 12 [2024-11-23 18:38:19,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346614819] [2024-11-23 18:38:19,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:38:19,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 18:38:19,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:38:19,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 18:38:19,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:38:19,071 INFO L87 Difference]: Start difference. First operand 8263 states and 11391 transitions. Second operand has 12 states, 11 states have (on average 63.63636363636363) internal successors, (700), 12 states have internal predecessors, (700), 7 states have call successors, (91), 5 states have call predecessors, (91), 6 states have return successors, (89), 7 states have call predecessors, (89), 7 states have call successors, (89) [2024-11-23 18:38:23,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:38:55,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:38:56,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:38:56,000 INFO L93 Difference]: Finished difference Result 23920 states and 36270 transitions. [2024-11-23 18:38:56,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 18:38:56,001 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 63.63636363636363) internal successors, (700), 12 states have internal predecessors, (700), 7 states have call successors, (91), 5 states have call predecessors, (91), 6 states have return successors, (89), 7 states have call predecessors, (89), 7 states have call successors, (89) Word has length 582 [2024-11-23 18:38:56,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:38:56,118 INFO L225 Difference]: With dead ends: 23920 [2024-11-23 18:38:56,119 INFO L226 Difference]: Without dead ends: 15662 [2024-11-23 18:38:56,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1164 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2024-11-23 18:38:56,171 INFO L435 NwaCegarLoop]: 3194 mSDtfsCounter, 19189 mSDsluCounter, 15296 mSDsCounter, 0 mSdLazyCounter, 7998 mSolverCounterSat, 7803 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19189 SdHoareTripleChecker+Valid, 18490 SdHoareTripleChecker+Invalid, 15803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7803 IncrementalHoareTripleChecker+Valid, 7998 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:38:56,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19189 Valid, 18490 Invalid, 15803 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7803 Valid, 7998 Invalid, 2 Unknown, 0 Unchecked, 33.2s Time] [2024-11-23 18:38:56,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15662 states. [2024-11-23 18:38:58,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15662 to 10505. [2024-11-23 18:38:58,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10505 states, 7929 states have (on average 1.2730483036952958) internal successors, (10094), 7931 states have internal predecessors, (10094), 1974 states have call successors, (1974), 431 states have call predecessors, (1974), 601 states have return successors, (3436), 2250 states have call predecessors, (3436), 1973 states have call successors, (3436) [2024-11-23 18:38:58,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10505 states to 10505 states and 15504 transitions. [2024-11-23 18:38:58,109 INFO L78 Accepts]: Start accepts. Automaton has 10505 states and 15504 transitions. Word has length 582 [2024-11-23 18:38:58,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:38:58,109 INFO L471 AbstractCegarLoop]: Abstraction has 10505 states and 15504 transitions. [2024-11-23 18:38:58,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 63.63636363636363) internal successors, (700), 12 states have internal predecessors, (700), 7 states have call successors, (91), 5 states have call predecessors, (91), 6 states have return successors, (89), 7 states have call predecessors, (89), 7 states have call successors, (89) [2024-11-23 18:38:58,109 INFO L276 IsEmpty]: Start isEmpty. Operand 10505 states and 15504 transitions. [2024-11-23 18:38:58,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-23 18:38:58,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:58,126 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:38:58,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-23 18:38:58,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:38:58,327 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:58,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:58,328 INFO L85 PathProgramCache]: Analyzing trace with hash 239005987, now seen corresponding path program 1 times [2024-11-23 18:38:58,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:58,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494021668] [2024-11-23 18:38:58,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:58,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:38:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:38:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 40 proven. 4 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-23 18:38:59,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:38:59,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494021668] [2024-11-23 18:38:59,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494021668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:38:59,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262192144] [2024-11-23 18:38:59,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:59,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:38:59,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:38:59,459 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:38:59,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 18:39:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:03,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 3996 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 18:39:03,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:39:03,608 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-23 18:39:03,608 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:39:03,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262192144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:03,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:39:03,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-11-23 18:39:03,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079085428] [2024-11-23 18:39:03,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:03,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:03,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:03,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:03,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:39:03,611 INFO L87 Difference]: Start difference. First operand 10505 states and 15504 transitions. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-23 18:39:05,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:05,369 INFO L93 Difference]: Finished difference Result 20731 states and 30722 transitions. [2024-11-23 18:39:05,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:05,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 591 [2024-11-23 18:39:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:05,454 INFO L225 Difference]: With dead ends: 20731 [2024-11-23 18:39:05,455 INFO L226 Difference]: Without dead ends: 10231 [2024-11-23 18:39:05,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:39:05,511 INFO L435 NwaCegarLoop]: 2832 mSDtfsCounter, 152 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:05,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 5470 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:39:05,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10231 states. [2024-11-23 18:39:07,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10231 to 10171. [2024-11-23 18:39:07,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10171 states, 7647 states have (on average 1.2708251601935399) internal successors, (9718), 7640 states have internal predecessors, (9718), 1948 states have call successors, (1948), 422 states have call predecessors, (1948), 575 states have return successors, (3332), 2214 states have call predecessors, (3332), 1947 states have call successors, (3332) [2024-11-23 18:39:07,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10171 states to 10171 states and 14998 transitions. [2024-11-23 18:39:07,579 INFO L78 Accepts]: Start accepts. Automaton has 10171 states and 14998 transitions. Word has length 591 [2024-11-23 18:39:07,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:07,580 INFO L471 AbstractCegarLoop]: Abstraction has 10171 states and 14998 transitions. [2024-11-23 18:39:07,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-23 18:39:07,580 INFO L276 IsEmpty]: Start isEmpty. Operand 10171 states and 14998 transitions. [2024-11-23 18:39:07,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2024-11-23 18:39:07,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:07,598 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:07,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-23 18:39:07,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88635c-e289-4e5a-9549-d2cb4d2363c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:39:07,798 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:07,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:07,799 INFO L85 PathProgramCache]: Analyzing trace with hash -488365828, now seen corresponding path program 1 times [2024-11-23 18:39:07,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:07,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732272685] [2024-11-23 18:39:07,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:07,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:10,519 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-23 18:39:10,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:10,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732272685] [2024-11-23 18:39:10,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732272685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:10,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:10,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:39:10,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170284430] [2024-11-23 18:39:10,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:10,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:39:10,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:10,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:39:10,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:39:10,522 INFO L87 Difference]: Start difference. First operand 10171 states and 14998 transitions. Second operand has 6 states, 6 states have (on average 69.0) internal successors, (414), 5 states have internal predecessors, (414), 3 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-23 18:39:18,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:18,103 INFO L93 Difference]: Finished difference Result 19385 states and 28604 transitions. [2024-11-23 18:39:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:39:18,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 5 states have internal predecessors, (414), 3 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 586 [2024-11-23 18:39:18,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:18,212 INFO L225 Difference]: With dead ends: 19385 [2024-11-23 18:39:18,212 INFO L226 Difference]: Without dead ends: 19383 [2024-11-23 18:39:18,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:39:18,226 INFO L435 NwaCegarLoop]: 2853 mSDtfsCounter, 4383 mSDsluCounter, 7932 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4633 SdHoareTripleChecker+Valid, 10785 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:18,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4633 Valid, 10785 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-23 18:39:18,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19383 states. [2024-11-23 18:39:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19383 to 11239. [2024-11-23 18:39:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11239 states, 8501 states have (on average 1.2678508410775202) internal successors, (10778), 8516 states have internal predecessors, (10778), 2117 states have call successors, (2117), 465 states have call predecessors, (2117), 620 states have return successors, (3503), 2375 states have call predecessors, (3503), 2116 states have call successors, (3503) [2024-11-23 18:39:20,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11239 states to 11239 states and 16398 transitions. [2024-11-23 18:39:20,041 INFO L78 Accepts]: Start accepts. Automaton has 11239 states and 16398 transitions. Word has length 586 [2024-11-23 18:39:20,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:20,041 INFO L471 AbstractCegarLoop]: Abstraction has 11239 states and 16398 transitions. [2024-11-23 18:39:20,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 5 states have internal predecessors, (414), 3 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-23 18:39:20,041 INFO L276 IsEmpty]: Start isEmpty. Operand 11239 states and 16398 transitions. [2024-11-23 18:39:20,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2024-11-23 18:39:20,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:20,061 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:20,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-23 18:39:20,061 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:20,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:20,062 INFO L85 PathProgramCache]: Analyzing trace with hash -455113441, now seen corresponding path program 1 times [2024-11-23 18:39:20,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:20,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361336249] [2024-11-23 18:39:20,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:20,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:21,630 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-23 18:39:21,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:21,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361336249] [2024-11-23 18:39:21,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361336249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:21,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:21,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:21,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310221934] [2024-11-23 18:39:21,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:21,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:21,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:21,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:21,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:21,635 INFO L87 Difference]: Start difference. First operand 11239 states and 16398 transitions. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-23 18:39:23,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:23,554 INFO L93 Difference]: Finished difference Result 22481 states and 32813 transitions. [2024-11-23 18:39:23,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:23,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 636 [2024-11-23 18:39:23,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:23,636 INFO L225 Difference]: With dead ends: 22481 [2024-11-23 18:39:23,636 INFO L226 Difference]: Without dead ends: 11247 [2024-11-23 18:39:23,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:23,685 INFO L435 NwaCegarLoop]: 2827 mSDtfsCounter, 0 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5645 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:23,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5645 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:39:23,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2024-11-23 18:39:25,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 11247. [2024-11-23 18:39:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11247 states, 8509 states have (on average 1.267599012809966) internal successors, (10786), 8524 states have internal predecessors, (10786), 2117 states have call successors, (2117), 465 states have call predecessors, (2117), 620 states have return successors, (3503), 2375 states have call predecessors, (3503), 2116 states have call successors, (3503) [2024-11-23 18:39:25,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11247 states to 11247 states and 16406 transitions. [2024-11-23 18:39:25,453 INFO L78 Accepts]: Start accepts. Automaton has 11247 states and 16406 transitions. Word has length 636 [2024-11-23 18:39:25,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:25,454 INFO L471 AbstractCegarLoop]: Abstraction has 11247 states and 16406 transitions. [2024-11-23 18:39:25,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-23 18:39:25,454 INFO L276 IsEmpty]: Start isEmpty. Operand 11247 states and 16406 transitions. [2024-11-23 18:39:25,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2024-11-23 18:39:25,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:25,474 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:25,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-23 18:39:25,474 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:25,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:25,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1476012193, now seen corresponding path program 1 times [2024-11-23 18:39:25,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:25,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529044230] [2024-11-23 18:39:25,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:25,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-11-23 18:39:27,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:27,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529044230] [2024-11-23 18:39:27,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529044230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:27,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:27,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:39:27,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879666051] [2024-11-23 18:39:27,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:27,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:39:27,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:27,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:39:27,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:39:27,078 INFO L87 Difference]: Start difference. First operand 11247 states and 16406 transitions. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 3 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-23 18:39:34,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:34,012 INFO L93 Difference]: Finished difference Result 22599 states and 32931 transitions. [2024-11-23 18:39:34,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:39:34,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 3 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 636 [2024-11-23 18:39:34,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:34,094 INFO L225 Difference]: With dead ends: 22599 [2024-11-23 18:39:34,094 INFO L226 Difference]: Without dead ends: 11357 [2024-11-23 18:39:34,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:39:34,143 INFO L435 NwaCegarLoop]: 3285 mSDtfsCounter, 3481 mSDsluCounter, 5112 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3481 SdHoareTripleChecker+Valid, 8397 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:34,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3481 Valid, 8397 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-23 18:39:34,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11357 states. [2024-11-23 18:39:36,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11357 to 11221. [2024-11-23 18:39:36,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11221 states, 8491 states have (on average 1.2667530326227772) internal successors, (10756), 8508 states have internal predecessors, (10756), 2109 states have call successors, (2109), 465 states have call predecessors, (2109), 620 states have return successors, (3491), 2365 states have call predecessors, (3491), 2108 states have call successors, (3491) [2024-11-23 18:39:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11221 states to 11221 states and 16356 transitions. [2024-11-23 18:39:36,517 INFO L78 Accepts]: Start accepts. Automaton has 11221 states and 16356 transitions. Word has length 636 [2024-11-23 18:39:36,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:36,518 INFO L471 AbstractCegarLoop]: Abstraction has 11221 states and 16356 transitions. [2024-11-23 18:39:36,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 3 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-23 18:39:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 11221 states and 16356 transitions. [2024-11-23 18:39:36,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2024-11-23 18:39:36,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:36,538 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:36,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-23 18:39:36,538 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:36,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:36,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2028864287, now seen corresponding path program 1 times [2024-11-23 18:39:36,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:36,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856960022] [2024-11-23 18:39:36,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:36,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:37,955 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-11-23 18:39:37,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:37,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856960022] [2024-11-23 18:39:37,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856960022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:37,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:37,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:39:37,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807731208] [2024-11-23 18:39:37,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:37,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:39:37,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:37,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:39:37,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:39:37,959 INFO L87 Difference]: Start difference. First operand 11221 states and 16356 transitions. Second operand has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 4 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2024-11-23 18:39:44,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:44,461 INFO L93 Difference]: Finished difference Result 22553 states and 32851 transitions. [2024-11-23 18:39:44,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:39:44,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 4 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) Word has length 640 [2024-11-23 18:39:44,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:44,545 INFO L225 Difference]: With dead ends: 22553 [2024-11-23 18:39:44,545 INFO L226 Difference]: Without dead ends: 11337 [2024-11-23 18:39:44,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:39:44,595 INFO L435 NwaCegarLoop]: 3377 mSDtfsCounter, 4700 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4700 SdHoareTripleChecker+Valid, 6955 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:44,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4700 Valid, 6955 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-23 18:39:44,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11337 states. [2024-11-23 18:39:46,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11337 to 11201. [2024-11-23 18:39:46,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11201 states, 8479 states have (on average 1.2661870503597121) internal successors, (10736), 8500 states have internal predecessors, (10736), 2101 states have call successors, (2101), 465 states have call predecessors, (2101), 620 states have return successors, (3475), 2353 states have call predecessors, (3475), 2100 states have call successors, (3475) [2024-11-23 18:39:46,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11201 states to 11201 states and 16312 transitions. [2024-11-23 18:39:46,378 INFO L78 Accepts]: Start accepts. Automaton has 11201 states and 16312 transitions. Word has length 640 [2024-11-23 18:39:46,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:46,378 INFO L471 AbstractCegarLoop]: Abstraction has 11201 states and 16312 transitions. [2024-11-23 18:39:46,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 4 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2024-11-23 18:39:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 11201 states and 16312 transitions. [2024-11-23 18:39:46,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-23 18:39:46,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:46,399 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:46,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-23 18:39:46,400 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:46,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:46,400 INFO L85 PathProgramCache]: Analyzing trace with hash 957019088, now seen corresponding path program 1 times [2024-11-23 18:39:46,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:46,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766491432] [2024-11-23 18:39:46,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:46,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:47,946 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-23 18:39:47,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:47,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766491432] [2024-11-23 18:39:47,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766491432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:47,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:47,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:39:47,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037809120] [2024-11-23 18:39:47,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:47,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:39:47,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:47,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:39:47,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:39:47,950 INFO L87 Difference]: Start difference. First operand 11201 states and 16312 transitions. Second operand has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 3 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-23 18:39:53,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:53,667 INFO L93 Difference]: Finished difference Result 22483 states and 32767 transitions. [2024-11-23 18:39:53,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:39:53,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 3 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 641 [2024-11-23 18:39:53,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:53,754 INFO L225 Difference]: With dead ends: 22483 [2024-11-23 18:39:53,755 INFO L226 Difference]: Without dead ends: 11287 [2024-11-23 18:39:53,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:39:53,807 INFO L435 NwaCegarLoop]: 3272 mSDtfsCounter, 6223 mSDsluCounter, 2546 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6223 SdHoareTripleChecker+Valid, 5818 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:53,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6223 Valid, 5818 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [724 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-23 18:39:53,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11287 states. [2024-11-23 18:39:55,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 11151. [2024-11-23 18:39:55,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11151 states, 8445 states have (on average 1.2644168146832446) internal successors, (10678), 8468 states have internal predecessors, (10678), 2085 states have call successors, (2085), 465 states have call predecessors, (2085), 620 states have return successors, (3455), 2335 states have call predecessors, (3455), 2084 states have call successors, (3455) [2024-11-23 18:39:55,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11151 states to 11151 states and 16218 transitions. [2024-11-23 18:39:55,769 INFO L78 Accepts]: Start accepts. Automaton has 11151 states and 16218 transitions. Word has length 641 [2024-11-23 18:39:55,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:55,769 INFO L471 AbstractCegarLoop]: Abstraction has 11151 states and 16218 transitions. [2024-11-23 18:39:55,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 3 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-23 18:39:55,769 INFO L276 IsEmpty]: Start isEmpty. Operand 11151 states and 16218 transitions. [2024-11-23 18:39:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-23 18:39:55,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:55,790 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:55,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-23 18:39:55,790 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:55,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:55,791 INFO L85 PathProgramCache]: Analyzing trace with hash 151922928, now seen corresponding path program 1 times [2024-11-23 18:39:55,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:55,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782955770] [2024-11-23 18:39:55,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:55,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-23 18:39:57,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:57,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782955770] [2024-11-23 18:39:57,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782955770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:57,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:57,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:39:57,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846884100] [2024-11-23 18:39:57,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:57,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:39:57,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:57,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:39:57,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:39:57,207 INFO L87 Difference]: Start difference. First operand 11151 states and 16218 transitions. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 4 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2024-11-23 18:40:03,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:03,733 INFO L93 Difference]: Finished difference Result 22395 states and 32679 transitions. [2024-11-23 18:40:03,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:40:03,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 4 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 645 [2024-11-23 18:40:03,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:03,831 INFO L225 Difference]: With dead ends: 22395 [2024-11-23 18:40:03,831 INFO L226 Difference]: Without dead ends: 11249 [2024-11-23 18:40:03,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:40:03,895 INFO L435 NwaCegarLoop]: 3373 mSDtfsCounter, 6452 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6452 SdHoareTripleChecker+Valid, 5974 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:03,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6452 Valid, 5974 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-23 18:40:03,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11249 states. [2024-11-23 18:40:06,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11249 to 11113. [2024-11-23 18:40:06,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11113 states, 8423 states have (on average 1.2632078831770153) internal successors, (10640), 8452 states have internal predecessors, (10640), 2069 states have call successors, (2069), 465 states have call predecessors, (2069), 620 states have return successors, (3427), 2313 states have call predecessors, (3427), 2068 states have call successors, (3427) [2024-11-23 18:40:06,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11113 states to 11113 states and 16136 transitions. [2024-11-23 18:40:06,857 INFO L78 Accepts]: Start accepts. Automaton has 11113 states and 16136 transitions. Word has length 645 [2024-11-23 18:40:06,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:06,858 INFO L471 AbstractCegarLoop]: Abstraction has 11113 states and 16136 transitions. [2024-11-23 18:40:06,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 4 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2024-11-23 18:40:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 11113 states and 16136 transitions. [2024-11-23 18:40:07,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2024-11-23 18:40:07,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:07,037 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:07,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-23 18:40:07,038 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:07,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:07,038 INFO L85 PathProgramCache]: Analyzing trace with hash 789559030, now seen corresponding path program 1 times [2024-11-23 18:40:07,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:07,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808053130] [2024-11-23 18:40:07,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:07,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:08,557 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-11-23 18:40:08,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:08,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808053130] [2024-11-23 18:40:08,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808053130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:08,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:08,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 18:40:08,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585955051] [2024-11-23 18:40:08,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:08,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:40:08,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:08,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:40:08,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:40:08,561 INFO L87 Difference]: Start difference. First operand 11113 states and 16136 transitions. Second operand has 7 states, 6 states have (on average 75.66666666666667) internal successors, (454), 7 states have internal predecessors, (454), 3 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-23 18:40:11,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:11,340 INFO L93 Difference]: Finished difference Result 23076 states and 33703 transitions. [2024-11-23 18:40:11,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:40:11,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 75.66666666666667) internal successors, (454), 7 states have internal predecessors, (454), 3 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 646 [2024-11-23 18:40:11,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:11,460 INFO L225 Difference]: With dead ends: 23076 [2024-11-23 18:40:11,460 INFO L226 Difference]: Without dead ends: 11180 [2024-11-23 18:40:11,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:40:11,531 INFO L435 NwaCegarLoop]: 2816 mSDtfsCounter, 140 mSDsluCounter, 13975 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 16791 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:11,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 16791 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:40:11,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11180 states. [2024-11-23 18:40:13,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11180 to 11105. [2024-11-23 18:40:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11105 states, 8415 states have (on average 1.261556743909685) internal successors, (10616), 8436 states have internal predecessors, (10616), 2069 states have call successors, (2069), 465 states have call predecessors, (2069), 620 states have return successors, (3427), 2313 states have call predecessors, (3427), 2068 states have call successors, (3427) [2024-11-23 18:40:13,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11105 states to 11105 states and 16112 transitions. [2024-11-23 18:40:13,999 INFO L78 Accepts]: Start accepts. Automaton has 11105 states and 16112 transitions. Word has length 646 [2024-11-23 18:40:14,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:14,000 INFO L471 AbstractCegarLoop]: Abstraction has 11105 states and 16112 transitions. [2024-11-23 18:40:14,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 75.66666666666667) internal successors, (454), 7 states have internal predecessors, (454), 3 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-23 18:40:14,000 INFO L276 IsEmpty]: Start isEmpty. Operand 11105 states and 16112 transitions. [2024-11-23 18:40:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-11-23 18:40:14,023 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:14,023 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:14,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-23 18:40:14,024 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:14,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:14,024 INFO L85 PathProgramCache]: Analyzing trace with hash -417317352, now seen corresponding path program 1 times [2024-11-23 18:40:14,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:14,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831646741] [2024-11-23 18:40:14,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:14,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2024-11-23 18:40:15,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:15,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831646741] [2024-11-23 18:40:15,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831646741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:15,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:15,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:40:15,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704136905] [2024-11-23 18:40:15,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:15,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:40:15,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:15,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:40:15,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:40:15,543 INFO L87 Difference]: Start difference. First operand 11105 states and 16112 transitions. Second operand has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 4 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2024-11-23 18:40:21,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:21,673 INFO L93 Difference]: Finished difference Result 22291 states and 32367 transitions. [2024-11-23 18:40:21,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:40:21,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 4 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) Word has length 664 [2024-11-23 18:40:21,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:21,900 INFO L225 Difference]: With dead ends: 22291 [2024-11-23 18:40:21,901 INFO L226 Difference]: Without dead ends: 11191 [2024-11-23 18:40:21,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:40:21,937 INFO L435 NwaCegarLoop]: 3256 mSDtfsCounter, 4256 mSDsluCounter, 3330 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4256 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:21,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4256 Valid, 6586 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 18:40:21,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11191 states. [2024-11-23 18:40:23,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11191 to 11055. [2024-11-23 18:40:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11055 states, 8381 states have (on average 1.2597542059420117) internal successors, (10558), 8404 states have internal predecessors, (10558), 2053 states have call successors, (2053), 465 states have call predecessors, (2053), 620 states have return successors, (3407), 2295 states have call predecessors, (3407), 2052 states have call successors, (3407) [2024-11-23 18:40:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11055 states to 11055 states and 16018 transitions. [2024-11-23 18:40:23,774 INFO L78 Accepts]: Start accepts. Automaton has 11055 states and 16018 transitions. Word has length 664 [2024-11-23 18:40:23,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:23,774 INFO L471 AbstractCegarLoop]: Abstraction has 11055 states and 16018 transitions. [2024-11-23 18:40:23,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 4 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2024-11-23 18:40:23,774 INFO L276 IsEmpty]: Start isEmpty. Operand 11055 states and 16018 transitions. [2024-11-23 18:40:23,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2024-11-23 18:40:23,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:23,798 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:23,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-23 18:40:23,798 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:23,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:23,799 INFO L85 PathProgramCache]: Analyzing trace with hash -655695788, now seen corresponding path program 1 times [2024-11-23 18:40:23,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:23,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076864806] [2024-11-23 18:40:23,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:23,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2024-11-23 18:40:25,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:25,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076864806] [2024-11-23 18:40:25,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076864806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:25,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:25,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:40:25,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051356496] [2024-11-23 18:40:25,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:25,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:40:25,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:25,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:40:25,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:40:25,436 INFO L87 Difference]: Start difference. First operand 11055 states and 16018 transitions. Second operand has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 4 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46)