./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB --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 bfe38d632dc9d05bd2dc6fdd28950c1547024966bcab88b0922592f6fd40a86e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:43:42,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:43:42,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:43:42,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:43:42,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:43:42,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:43:42,389 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:43:42,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:43:42,390 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:43:42,390 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:43:42,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:43:42,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:43:42,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:43:42,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:43:42,391 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:43:42,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:43:42,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:43:42,392 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:43:42,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:43:42,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:43:42,392 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:43:42,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:43:42,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:43:42,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:43:42,393 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:43:42,393 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:43:42,393 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:43:42,393 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:43:42,393 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:43:42,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:43:42,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:43:42,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:43:42,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:43:42,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:43:42,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:43:42,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:43:42,395 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:43:42,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:43:42,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:43:42,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:43:42,395 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:43:42,395 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:43:42,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:43:42,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:43:42,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:43:42,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:43:42,396 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:43:42,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:43:42,396 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_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB 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 -> bfe38d632dc9d05bd2dc6fdd28950c1547024966bcab88b0922592f6fd40a86e [2024-11-28 03:43:42,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:43:42,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:43:42,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:43:42,673 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:43:42,674 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:43:42,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c [2024-11-28 03:43:45,602 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/data/ed8c806d4/e924edf14d6140aa88cf4680e34b6c2f/FLAG7824cd651 [2024-11-28 03:43:46,019 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:43:46,020 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c [2024-11-28 03:43:46,048 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/data/ed8c806d4/e924edf14d6140aa88cf4680e34b6c2f/FLAG7824cd651 [2024-11-28 03:43:46,066 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/data/ed8c806d4/e924edf14d6140aa88cf4680e34b6c2f [2024-11-28 03:43:46,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:43:46,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:43:46,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:43:46,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:43:46,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:43:46,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:43:46" (1/1) ... [2024-11-28 03:43:46,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1388cb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:46, skipping insertion in model container [2024-11-28 03:43:46,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:43:46" (1/1) ... [2024-11-28 03:43:46,140 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:43:46,361 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_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c[2020,2033] [2024-11-28 03:43:46,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:43:46,872 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:43:46,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug2.i","-S") [47] [2024-11-28 03:43:46,892 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_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c[2020,2033] [2024-11-28 03:43:47,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:43:47,193 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:43:47,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47 WrapperNode [2024-11-28 03:43:47,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:43:47,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:43:47,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:43:47,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:43:47,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:47,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:47,550 INFO L138 Inliner]: procedures = 63, calls = 2139, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 4507 [2024-11-28 03:43:47,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:43:47,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:43:47,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:43:47,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:43:47,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:47,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:47,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:47,692 INFO L175 MemorySlicer]: Split 1626 memory accesses to 22 slices as follows [2, 2, 50, 5, 3, 264, 305, 8, 156, 113, 79, 57, 82, 105, 4, 82, 2, 105, 82, 105, 7, 8]. 19 percent of accesses are in the largest equivalence class. The 223 initializations are split as follows [2, 0, 0, 2, 1, 24, 24, 0, 2, 2, 1, 1, 27, 27, 0, 27, 0, 27, 27, 27, 2, 0]. The 257 writes are split as follows [0, 1, 26, 1, 1, 24, 24, 4, 2, 2, 1, 1, 28, 26, 0, 28, 1, 26, 28, 26, 3, 4]. [2024-11-28 03:43:47,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:47,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:47,876 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:47,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:47,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:47,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:48,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:48,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:43:48,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:43:48,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:43:48,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:43:48,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (1/1) ... [2024-11-28 03:43:48,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:43:48,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:43:48,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:43:48,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:43:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:43:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-28 03:43:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-28 03:43:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-28 03:43:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-28 03:43:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 03:43:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 03:43:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 03:43:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 03:43:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 03:43:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 03:43:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 03:43:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 03:43:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 03:43:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-28 03:43:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-28 03:43:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-28 03:43:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-28 03:43:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-28 03:43:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-28 03:43:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-28 03:43:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-28 03:43:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-28 03:43:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-28 03:43:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-28 03:43:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-11-28 03:43:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-11-28 03:43:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:43:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-28 03:43:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-28 03:43:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-28 03:43:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-28 03:43:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2024-11-28 03:43:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2024-11-28 03:43:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-28 03:43:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-28 03:43:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:43:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:43:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:43:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:43:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:43:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 03:43:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 03:43:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 03:43:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 03:43:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-28 03:43:48,130 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-28 03:43:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-28 03:43:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-28 03:43:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-28 03:43:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-28 03:43:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-28 03:43:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-28 03:43:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:43:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-28 03:43:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-28 03:43:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:43:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:43:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:43:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:43:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:43:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:43:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 03:43:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 03:43:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 03:43:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 03:43:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 03:43:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-28 03:43:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-28 03:43:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-28 03:43:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-28 03:43:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-28 03:43:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-28 03:43:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-28 03:43:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-28 03:43:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-28 03:43:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-28 03:43:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-28 03:43:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-28 03:43:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-28 03:43:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-28 03:43:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-28 03:43:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2024-11-28 03:43:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2024-11-28 03:43:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:43:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 03:43:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:43:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-28 03:43:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-28 03:43:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-28 03:43:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-28 03:43:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-28 03:43:48,699 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:43:48,702 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:43:56,880 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2024-11-28 03:43:56,881 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:43:56,943 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:43:56,947 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:43:56,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:43:56 BoogieIcfgContainer [2024-11-28 03:43:56,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:43:56,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:43:56,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:43:56,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:43:56,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:43:46" (1/3) ... [2024-11-28 03:43:56,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc71bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:43:56, skipping insertion in model container [2024-11-28 03:43:56,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:47" (2/3) ... [2024-11-28 03:43:56,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc71bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:43:56, skipping insertion in model container [2024-11-28 03:43:56,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:43:56" (3/3) ... [2024-11-28 03:43:56,957 INFO L128 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M1-1.c [2024-11-28 03:43:56,974 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:43:56,977 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekcba_nxt.2.M1-1.c that has 19 procedures, 1291 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:43:57,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:43:57,119 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;@3e155cdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:43:57,119 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:43:57,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 1291 states, 816 states have (on average 1.2745098039215685) internal successors, (1040), 848 states have internal predecessors, (1040), 455 states have call successors, (455), 18 states have call predecessors, (455), 18 states have return successors, (455), 453 states have call predecessors, (455), 455 states have call successors, (455) [2024-11-28 03:43:57,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2024-11-28 03:43:57,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:43:57,238 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:57,239 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:43:57,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:57,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1393177188, now seen corresponding path program 1 times [2024-11-28 03:43:57,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:57,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769410976] [2024-11-28 03:43:57,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:57,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 24420 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 24200 trivial. 0 not checked. [2024-11-28 03:43:59,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:59,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769410976] [2024-11-28 03:43:59,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769410976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:43:59,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465268948] [2024-11-28 03:43:59,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:59,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:43:59,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:43:59,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:43:59,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:44:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:01,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 3240 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:44:01,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:44:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 24420 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 24200 trivial. 0 not checked. [2024-11-28 03:44:01,748 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:44:01,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465268948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:01,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:44:01,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:44:01,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853369366] [2024-11-28 03:44:01,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:01,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:44:01,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:01,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:44:01,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:44:01,792 INFO L87 Difference]: Start difference. First operand has 1291 states, 816 states have (on average 1.2745098039215685) internal successors, (1040), 848 states have internal predecessors, (1040), 455 states have call successors, (455), 18 states have call predecessors, (455), 18 states have return successors, (455), 453 states have call predecessors, (455), 455 states have call successors, (455) Second operand has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (111), 1 states have call predecessors, (111), 2 states have call successors, (111) [2024-11-28 03:44:02,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:02,024 INFO L93 Difference]: Finished difference Result 2577 states and 4331 transitions. [2024-11-28 03:44:02,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:44:02,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (111), 1 states have call predecessors, (111), 2 states have call successors, (111) Word has length 878 [2024-11-28 03:44:02,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:02,067 INFO L225 Difference]: With dead ends: 2577 [2024-11-28 03:44:02,067 INFO L226 Difference]: Without dead ends: 1283 [2024-11-28 03:44:02,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 879 GetRequests, 879 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:44:02,087 INFO L435 NwaCegarLoop]: 1947 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, 1947 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 [2024-11-28 03:44:02,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:44:02,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2024-11-28 03:44:02,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283. [2024-11-28 03:44:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 809 states have (on average 1.2719406674907292) internal successors, (1029), 841 states have internal predecessors, (1029), 455 states have call successors, (455), 18 states have call predecessors, (455), 18 states have return successors, (454), 452 states have call predecessors, (454), 454 states have call successors, (454) [2024-11-28 03:44:02,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1938 transitions. [2024-11-28 03:44:02,443 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1938 transitions. Word has length 878 [2024-11-28 03:44:02,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:02,445 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1938 transitions. [2024-11-28 03:44:02,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (111), 1 states have call predecessors, (111), 2 states have call successors, (111) [2024-11-28 03:44:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1938 transitions. [2024-11-28 03:44:02,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2024-11-28 03:44:02,495 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:02,496 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:02,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:44:02,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:44:02,701 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:02,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:02,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1637496266, now seen corresponding path program 1 times [2024-11-28 03:44:02,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:02,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125167526] [2024-11-28 03:44:02,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:02,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:14,912 INFO L134 CoverageAnalysis]: Checked inductivity of 24420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2024-11-28 03:44:14,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:14,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125167526] [2024-11-28 03:44:14,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125167526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:14,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:14,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:44:14,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755305305] [2024-11-28 03:44:14,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:14,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:44:14,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:14,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:44:14,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:44:14,917 INFO L87 Difference]: Start difference. First operand 1283 states and 1938 transitions. Second operand has 6 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (111), 1 states have call predecessors, (111), 1 states have call successors, (111) [2024-11-28 03:45:04,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:04,188 INFO L93 Difference]: Finished difference Result 1785 states and 2696 transitions. [2024-11-28 03:45:04,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:04,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (111), 1 states have call predecessors, (111), 1 states have call successors, (111) Word has length 878 [2024-11-28 03:45:04,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:04,209 INFO L225 Difference]: With dead ends: 1785 [2024-11-28 03:45:04,209 INFO L226 Difference]: Without dead ends: 1783 [2024-11-28 03:45:04,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:04,212 INFO L435 NwaCegarLoop]: 1929 mSDtfsCounter, 1512 mSDsluCounter, 6442 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 8371 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:04,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 8371 Invalid, 190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 43.5s Time] [2024-11-28 03:45:04,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2024-11-28 03:45:04,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1781. [2024-11-28 03:45:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1103 states have (on average 1.2538531278331821) internal successors, (1383), 1161 states have internal predecessors, (1383), 644 states have call successors, (644), 33 states have call predecessors, (644), 33 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:45:04,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2693 transitions. [2024-11-28 03:45:04,655 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2693 transitions. Word has length 878 [2024-11-28 03:45:04,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:04,661 INFO L471 AbstractCegarLoop]: Abstraction has 1781 states and 2693 transitions. [2024-11-28 03:45:04,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (111), 1 states have call predecessors, (111), 1 states have call successors, (111) [2024-11-28 03:45:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2693 transitions. [2024-11-28 03:45:04,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2024-11-28 03:45:04,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:04,687 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:04,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:45:04,687 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:04,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:04,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1981183297, now seen corresponding path program 1 times [2024-11-28 03:45:04,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:04,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480487218] [2024-11-28 03:45:04,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:04,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 24422 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2024-11-28 03:45:10,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:10,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480487218] [2024-11-28 03:45:10,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480487218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:10,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:10,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:10,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496058810] [2024-11-28 03:45:10,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:10,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:10,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:10,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:10,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:10,035 INFO L87 Difference]: Start difference. First operand 1781 states and 2693 transitions. Second operand has 6 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 2 states have call successors, (113), 2 states have call predecessors, (113), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-28 03:45:11,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:11,168 INFO L93 Difference]: Finished difference Result 1789 states and 2699 transitions. [2024-11-28 03:45:11,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:11,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 2 states have call successors, (113), 2 states have call predecessors, (113), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 884 [2024-11-28 03:45:11,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:11,191 INFO L225 Difference]: With dead ends: 1789 [2024-11-28 03:45:11,191 INFO L226 Difference]: Without dead ends: 1787 [2024-11-28 03:45:11,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:11,196 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1507 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:11,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:45:11,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2024-11-28 03:45:11,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1785. [2024-11-28 03:45:11,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1106 states have (on average 1.2531645569620253) internal successors, (1386), 1164 states have internal predecessors, (1386), 644 states have call successors, (644), 34 states have call predecessors, (644), 34 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:45:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2696 transitions. [2024-11-28 03:45:11,759 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2696 transitions. Word has length 884 [2024-11-28 03:45:11,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:11,761 INFO L471 AbstractCegarLoop]: Abstraction has 1785 states and 2696 transitions. [2024-11-28 03:45:11,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 2 states have call successors, (113), 2 states have call predecessors, (113), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-28 03:45:11,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2696 transitions. [2024-11-28 03:45:11,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2024-11-28 03:45:11,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:11,783 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:11,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:45:11,783 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:11,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash -590990070, now seen corresponding path program 1 times [2024-11-28 03:45:11,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:11,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047027013] [2024-11-28 03:45:11,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:11,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 24428 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24424 trivial. 0 not checked. [2024-11-28 03:45:16,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:16,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047027013] [2024-11-28 03:45:16,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047027013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:16,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:16,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:16,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253173264] [2024-11-28 03:45:16,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:16,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:16,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:16,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:16,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:16,501 INFO L87 Difference]: Start difference. First operand 1785 states and 2696 transitions. Second operand has 6 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 2 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-28 03:45:17,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:17,495 INFO L93 Difference]: Finished difference Result 1793 states and 2702 transitions. [2024-11-28 03:45:17,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:17,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 2 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) Word has length 890 [2024-11-28 03:45:17,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:17,515 INFO L225 Difference]: With dead ends: 1793 [2024-11-28 03:45:17,515 INFO L226 Difference]: Without dead ends: 1791 [2024-11-28 03:45:17,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:17,519 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1505 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:17,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:45:17,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2024-11-28 03:45:18,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1789. [2024-11-28 03:45:18,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1109 states have (on average 1.2524797114517583) internal successors, (1389), 1167 states have internal predecessors, (1389), 644 states have call successors, (644), 35 states have call predecessors, (644), 35 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:45:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2699 transitions. [2024-11-28 03:45:18,260 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2699 transitions. Word has length 890 [2024-11-28 03:45:18,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:18,263 INFO L471 AbstractCegarLoop]: Abstraction has 1789 states and 2699 transitions. [2024-11-28 03:45:18,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 2 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-28 03:45:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2699 transitions. [2024-11-28 03:45:18,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2024-11-28 03:45:18,284 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:18,284 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:18,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:45:18,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:18,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:18,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1766456559, now seen corresponding path program 1 times [2024-11-28 03:45:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:18,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636164715] [2024-11-28 03:45:18,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:18,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 24438 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24432 trivial. 0 not checked. [2024-11-28 03:45:22,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:22,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636164715] [2024-11-28 03:45:22,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636164715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:22,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:22,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:22,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296915127] [2024-11-28 03:45:22,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:22,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:22,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:22,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:22,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:22,718 INFO L87 Difference]: Start difference. First operand 1789 states and 2699 transitions. Second operand has 6 states, 5 states have (on average 66.2) internal successors, (331), 5 states have internal predecessors, (331), 2 states have call successors, (115), 2 states have call predecessors, (115), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-28 03:45:23,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:23,717 INFO L93 Difference]: Finished difference Result 1797 states and 2705 transitions. [2024-11-28 03:45:23,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:23,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 66.2) internal successors, (331), 5 states have internal predecessors, (331), 2 states have call successors, (115), 2 states have call predecessors, (115), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 896 [2024-11-28 03:45:23,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:23,737 INFO L225 Difference]: With dead ends: 1797 [2024-11-28 03:45:23,737 INFO L226 Difference]: Without dead ends: 1795 [2024-11-28 03:45:23,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:23,742 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1503 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:23,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:45:23,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2024-11-28 03:45:24,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1793. [2024-11-28 03:45:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1112 states have (on average 1.2517985611510791) internal successors, (1392), 1170 states have internal predecessors, (1392), 644 states have call successors, (644), 36 states have call predecessors, (644), 36 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:45:24,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2702 transitions. [2024-11-28 03:45:24,239 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2702 transitions. Word has length 896 [2024-11-28 03:45:24,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:24,241 INFO L471 AbstractCegarLoop]: Abstraction has 1793 states and 2702 transitions. [2024-11-28 03:45:24,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 66.2) internal successors, (331), 5 states have internal predecessors, (331), 2 states have call successors, (115), 2 states have call predecessors, (115), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-28 03:45:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2702 transitions. [2024-11-28 03:45:24,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2024-11-28 03:45:24,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:24,261 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:24,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:45:24,261 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:24,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:24,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1696220970, now seen corresponding path program 1 times [2024-11-28 03:45:24,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:24,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188623673] [2024-11-28 03:45:24,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:24,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:28,764 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24444 trivial. 0 not checked. [2024-11-28 03:45:28,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:28,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188623673] [2024-11-28 03:45:28,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188623673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:28,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:28,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:28,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913632828] [2024-11-28 03:45:28,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:28,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:28,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:28,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:28,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:28,768 INFO L87 Difference]: Start difference. First operand 1793 states and 2702 transitions. Second operand has 6 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (115), 1 states have call predecessors, (115), 1 states have call successors, (115) [2024-11-28 03:45:29,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:29,623 INFO L93 Difference]: Finished difference Result 1801 states and 2708 transitions. [2024-11-28 03:45:29,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:29,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (115), 1 states have call predecessors, (115), 1 states have call successors, (115) Word has length 902 [2024-11-28 03:45:29,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:29,639 INFO L225 Difference]: With dead ends: 1801 [2024-11-28 03:45:29,639 INFO L226 Difference]: Without dead ends: 1799 [2024-11-28 03:45:29,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:29,641 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1501 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:29,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:45:29,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2024-11-28 03:45:30,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1797. [2024-11-28 03:45:30,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1115 states have (on average 1.251121076233184) internal successors, (1395), 1173 states have internal predecessors, (1395), 644 states have call successors, (644), 37 states have call predecessors, (644), 37 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:45:30,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2705 transitions. [2024-11-28 03:45:30,155 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2705 transitions. Word has length 902 [2024-11-28 03:45:30,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:30,157 INFO L471 AbstractCegarLoop]: Abstraction has 1797 states and 2705 transitions. [2024-11-28 03:45:30,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (115), 1 states have call predecessors, (115), 1 states have call successors, (115) [2024-11-28 03:45:30,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2705 transitions. [2024-11-28 03:45:30,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 909 [2024-11-28 03:45:30,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:30,183 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:30,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:45:30,184 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:30,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:30,185 INFO L85 PathProgramCache]: Analyzing trace with hash 7081945, now seen corresponding path program 1 times [2024-11-28 03:45:30,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:30,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584334235] [2024-11-28 03:45:30,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:30,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 24470 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 24460 trivial. 0 not checked. [2024-11-28 03:45:33,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:33,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584334235] [2024-11-28 03:45:33,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584334235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:33,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:33,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:33,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850037456] [2024-11-28 03:45:33,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:33,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:33,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:33,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:33,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:33,915 INFO L87 Difference]: Start difference. First operand 1797 states and 2705 transitions. Second operand has 6 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:45:34,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:34,921 INFO L93 Difference]: Finished difference Result 1805 states and 2711 transitions. [2024-11-28 03:45:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:34,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 908 [2024-11-28 03:45:34,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:34,943 INFO L225 Difference]: With dead ends: 1805 [2024-11-28 03:45:34,944 INFO L226 Difference]: Without dead ends: 1803 [2024-11-28 03:45:34,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:34,947 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1499 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:34,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:45:34,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2024-11-28 03:45:35,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1801. [2024-11-28 03:45:35,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1118 states have (on average 1.2504472271914133) internal successors, (1398), 1176 states have internal predecessors, (1398), 644 states have call successors, (644), 38 states have call predecessors, (644), 38 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:45:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2708 transitions. [2024-11-28 03:45:35,520 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2708 transitions. Word has length 908 [2024-11-28 03:45:35,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:35,522 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2708 transitions. [2024-11-28 03:45:35,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:45:35,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2708 transitions. [2024-11-28 03:45:35,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2024-11-28 03:45:35,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:35,543 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:35,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:45:35,543 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:35,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:35,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1982946918, now seen corresponding path program 1 times [2024-11-28 03:45:35,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:35,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121517467] [2024-11-28 03:45:35,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:35,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:39,964 INFO L134 CoverageAnalysis]: Checked inductivity of 24492 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24480 trivial. 0 not checked. [2024-11-28 03:45:39,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:39,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121517467] [2024-11-28 03:45:39,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121517467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:39,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:39,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:39,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688700707] [2024-11-28 03:45:39,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:39,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:39,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:39,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:39,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:39,969 INFO L87 Difference]: Start difference. First operand 1801 states and 2708 transitions. Second operand has 6 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 2 states have call successors, (118), 2 states have call predecessors, (118), 1 states have return successors, (117), 1 states have call predecessors, (117), 1 states have call successors, (117) [2024-11-28 03:45:40,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:40,947 INFO L93 Difference]: Finished difference Result 1809 states and 2714 transitions. [2024-11-28 03:45:40,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:40,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 2 states have call successors, (118), 2 states have call predecessors, (118), 1 states have return successors, (117), 1 states have call predecessors, (117), 1 states have call successors, (117) Word has length 914 [2024-11-28 03:45:40,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:40,966 INFO L225 Difference]: With dead ends: 1809 [2024-11-28 03:45:40,967 INFO L226 Difference]: Without dead ends: 1807 [2024-11-28 03:45:40,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:40,970 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1497 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:40,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:45:40,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2024-11-28 03:45:41,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1805. [2024-11-28 03:45:41,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1121 states have (on average 1.2497769848349687) internal successors, (1401), 1179 states have internal predecessors, (1401), 644 states have call successors, (644), 39 states have call predecessors, (644), 39 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:45:41,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2711 transitions. [2024-11-28 03:45:41,499 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2711 transitions. Word has length 914 [2024-11-28 03:45:41,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:41,501 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2711 transitions. [2024-11-28 03:45:41,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 2 states have call successors, (118), 2 states have call predecessors, (118), 1 states have return successors, (117), 1 states have call predecessors, (117), 1 states have call successors, (117) [2024-11-28 03:45:41,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2711 transitions. [2024-11-28 03:45:41,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 921 [2024-11-28 03:45:41,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:41,521 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:41,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:45:41,522 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:41,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:41,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1314514841, now seen corresponding path program 1 times [2024-11-28 03:45:41,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:41,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967404929] [2024-11-28 03:45:41,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:41,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 24518 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24504 trivial. 0 not checked. [2024-11-28 03:45:45,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:45,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967404929] [2024-11-28 03:45:45,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967404929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:45,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:45,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:45,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030374251] [2024-11-28 03:45:45,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:45,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:45,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:45,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:45,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:45,291 INFO L87 Difference]: Start difference. First operand 1805 states and 2711 transitions. Second operand has 6 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 2 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-11-28 03:45:46,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:46,123 INFO L93 Difference]: Finished difference Result 1813 states and 2717 transitions. [2024-11-28 03:45:46,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:46,124 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 2 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 920 [2024-11-28 03:45:46,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:46,139 INFO L225 Difference]: With dead ends: 1813 [2024-11-28 03:45:46,139 INFO L226 Difference]: Without dead ends: 1811 [2024-11-28 03:45:46,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:46,142 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1495 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:46,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:45:46,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-11-28 03:45:46,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1809. [2024-11-28 03:45:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1124 states have (on average 1.2491103202846976) internal successors, (1404), 1182 states have internal predecessors, (1404), 644 states have call successors, (644), 40 states have call predecessors, (644), 40 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:45:46,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2714 transitions. [2024-11-28 03:45:46,634 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2714 transitions. Word has length 920 [2024-11-28 03:45:46,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:46,636 INFO L471 AbstractCegarLoop]: Abstraction has 1809 states and 2714 transitions. [2024-11-28 03:45:46,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 2 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-11-28 03:45:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2714 transitions. [2024-11-28 03:45:46,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 927 [2024-11-28 03:45:46,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:46,653 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:46,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:45:46,654 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:46,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:46,655 INFO L85 PathProgramCache]: Analyzing trace with hash 24722262, now seen corresponding path program 1 times [2024-11-28 03:45:46,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:46,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133676545] [2024-11-28 03:45:46,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:46,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 24548 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24532 trivial. 0 not checked. [2024-11-28 03:45:50,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:50,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133676545] [2024-11-28 03:45:50,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133676545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:50,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:50,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:50,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980373234] [2024-11-28 03:45:50,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:50,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:50,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:50,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:50,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:50,110 INFO L87 Difference]: Start difference. First operand 1809 states and 2714 transitions. Second operand has 6 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 2 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2024-11-28 03:45:50,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:50,898 INFO L93 Difference]: Finished difference Result 1817 states and 2720 transitions. [2024-11-28 03:45:50,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:50,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 2 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) Word has length 926 [2024-11-28 03:45:50,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:50,914 INFO L225 Difference]: With dead ends: 1817 [2024-11-28 03:45:50,914 INFO L226 Difference]: Without dead ends: 1815 [2024-11-28 03:45:50,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:50,917 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1493 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:50,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:45:50,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2024-11-28 03:45:51,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1813. [2024-11-28 03:45:51,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1127 states have (on average 1.2484472049689441) internal successors, (1407), 1185 states have internal predecessors, (1407), 644 states have call successors, (644), 41 states have call predecessors, (644), 41 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:45:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2717 transitions. [2024-11-28 03:45:51,507 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2717 transitions. Word has length 926 [2024-11-28 03:45:51,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:51,508 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2717 transitions. [2024-11-28 03:45:51,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 2 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (119), 1 states have call predecessors, (119), 1 states have call successors, (119) [2024-11-28 03:45:51,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2717 transitions. [2024-11-28 03:45:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 933 [2024-11-28 03:45:51,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:51,524 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:51,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:45:51,525 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:51,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:51,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1477367377, now seen corresponding path program 1 times [2024-11-28 03:45:51,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:51,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164526097] [2024-11-28 03:45:51,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:51,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 24582 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 24564 trivial. 0 not checked. [2024-11-28 03:45:55,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:55,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164526097] [2024-11-28 03:45:55,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164526097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:55,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:55,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:55,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477586518] [2024-11-28 03:45:55,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:55,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:55,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:55,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:55,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:55,061 INFO L87 Difference]: Start difference. First operand 1813 states and 2717 transitions. Second operand has 6 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 2 states have call successors, (121), 2 states have call predecessors, (121), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-28 03:45:55,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:55,623 INFO L93 Difference]: Finished difference Result 1821 states and 2723 transitions. [2024-11-28 03:45:55,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:55,623 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 2 states have call successors, (121), 2 states have call predecessors, (121), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 932 [2024-11-28 03:45:55,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:55,635 INFO L225 Difference]: With dead ends: 1821 [2024-11-28 03:45:55,635 INFO L226 Difference]: Without dead ends: 1819 [2024-11-28 03:45:55,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:55,638 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1491 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:55,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:45:55,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2024-11-28 03:45:56,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1817. [2024-11-28 03:45:56,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1130 states have (on average 1.247787610619469) internal successors, (1410), 1188 states have internal predecessors, (1410), 644 states have call successors, (644), 42 states have call predecessors, (644), 42 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:45:56,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 2720 transitions. [2024-11-28 03:45:56,147 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 2720 transitions. Word has length 932 [2024-11-28 03:45:56,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:56,148 INFO L471 AbstractCegarLoop]: Abstraction has 1817 states and 2720 transitions. [2024-11-28 03:45:56,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 2 states have call successors, (121), 2 states have call predecessors, (121), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-28 03:45:56,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 2720 transitions. [2024-11-28 03:45:56,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2024-11-28 03:45:56,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:56,164 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:56,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:45:56,164 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:56,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:56,165 INFO L85 PathProgramCache]: Analyzing trace with hash 197906954, now seen corresponding path program 1 times [2024-11-28 03:45:56,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:56,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425433615] [2024-11-28 03:45:56,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:56,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:59,872 INFO L134 CoverageAnalysis]: Checked inductivity of 24620 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 24600 trivial. 0 not checked. [2024-11-28 03:45:59,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:59,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425433615] [2024-11-28 03:45:59,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425433615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:59,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:59,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:59,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572158814] [2024-11-28 03:45:59,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:59,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:59,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:59,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:59,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:59,875 INFO L87 Difference]: Start difference. First operand 1817 states and 2720 transitions. Second operand has 6 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 2 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (121), 1 states have call predecessors, (121), 1 states have call successors, (121) [2024-11-28 03:46:00,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:00,586 INFO L93 Difference]: Finished difference Result 1825 states and 2726 transitions. [2024-11-28 03:46:00,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:46:00,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 2 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (121), 1 states have call predecessors, (121), 1 states have call successors, (121) Word has length 938 [2024-11-28 03:46:00,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:00,598 INFO L225 Difference]: With dead ends: 1825 [2024-11-28 03:46:00,598 INFO L226 Difference]: Without dead ends: 1823 [2024-11-28 03:46:00,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:46:00,601 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1489 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:00,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:46:00,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2024-11-28 03:46:01,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1821. [2024-11-28 03:46:01,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1133 states have (on average 1.2471315092674315) internal successors, (1413), 1191 states have internal predecessors, (1413), 644 states have call successors, (644), 43 states have call predecessors, (644), 43 states have return successors, (666), 639 states have call predecessors, (666), 642 states have call successors, (666) [2024-11-28 03:46:01,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2723 transitions. [2024-11-28 03:46:01,059 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2723 transitions. Word has length 938 [2024-11-28 03:46:01,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:01,060 INFO L471 AbstractCegarLoop]: Abstraction has 1821 states and 2723 transitions. [2024-11-28 03:46:01,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 2 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (121), 1 states have call predecessors, (121), 1 states have call successors, (121) [2024-11-28 03:46:01,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2723 transitions. [2024-11-28 03:46:01,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2024-11-28 03:46:01,076 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:01,077 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:01,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:46:01,077 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:01,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:01,078 INFO L85 PathProgramCache]: Analyzing trace with hash 133858886, now seen corresponding path program 1 times [2024-11-28 03:46:01,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:01,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083624080] [2024-11-28 03:46:01,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:01,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:03,580 INFO L134 CoverageAnalysis]: Checked inductivity of 25325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25325 trivial. 0 not checked. [2024-11-28 03:46:03,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:03,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083624080] [2024-11-28 03:46:03,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083624080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:03,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:03,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:46:03,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105918173] [2024-11-28 03:46:03,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:03,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:46:03,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:03,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:46:03,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:46:03,584 INFO L87 Difference]: Start difference. First operand 1821 states and 2723 transitions. Second operand has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 3 states have call successors, (124), 2 states have call predecessors, (124), 3 states have return successors, (123), 3 states have call predecessors, (123), 3 states have call successors, (123) [2024-11-28 03:46:04,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:04,754 INFO L93 Difference]: Finished difference Result 3922 states and 6008 transitions. [2024-11-28 03:46:04,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:46:04,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 3 states have call successors, (124), 2 states have call predecessors, (124), 3 states have return successors, (123), 3 states have call predecessors, (123), 3 states have call successors, (123) Word has length 977 [2024-11-28 03:46:04,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:04,794 INFO L225 Difference]: With dead ends: 3922 [2024-11-28 03:46:04,794 INFO L226 Difference]: Without dead ends: 2888 [2024-11-28 03:46:04,809 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 [2024-11-28 03:46:04,810 INFO L435 NwaCegarLoop]: 2580 mSDtfsCounter, 1907 mSDsluCounter, 4125 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 6705 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:04,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1907 Valid, 6705 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:46:04,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2024-11-28 03:46:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2723. [2024-11-28 03:46:05,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 1674 states have (on average 1.2395459976105137) internal successors, (2075), 1785 states have internal predecessors, (2075), 976 states have call successors, (976), 72 states have call predecessors, (976), 72 states have return successors, (1097), 967 states have call predecessors, (1097), 974 states have call successors, (1097) [2024-11-28 03:46:05,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 4148 transitions. [2024-11-28 03:46:05,621 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 4148 transitions. Word has length 977 [2024-11-28 03:46:05,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:05,622 INFO L471 AbstractCegarLoop]: Abstraction has 2723 states and 4148 transitions. [2024-11-28 03:46:05,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 3 states have call successors, (124), 2 states have call predecessors, (124), 3 states have return successors, (123), 3 states have call predecessors, (123), 3 states have call successors, (123) [2024-11-28 03:46:05,622 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 4148 transitions. [2024-11-28 03:46:05,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 973 [2024-11-28 03:46:05,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:05,653 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:05,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:46:05,653 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:05,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash -244479811, now seen corresponding path program 1 times [2024-11-28 03:46:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:05,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085961547] [2024-11-28 03:46:05,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:05,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 25325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25325 trivial. 0 not checked. [2024-11-28 03:46:08,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:08,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085961547] [2024-11-28 03:46:08,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085961547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:08,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:08,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:46:08,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013427811] [2024-11-28 03:46:08,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:08,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:46:08,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:08,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:46:08,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:46:08,063 INFO L87 Difference]: Start difference. First operand 2723 states and 4148 transitions. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 3 states have call successors, (123), 2 states have call predecessors, (123), 3 states have return successors, (122), 3 states have call predecessors, (122), 3 states have call successors, (122) [2024-11-28 03:46:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:09,180 INFO L93 Difference]: Finished difference Result 5514 states and 8617 transitions. [2024-11-28 03:46:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:46:09,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 3 states have call successors, (123), 2 states have call predecessors, (123), 3 states have return successors, (122), 3 states have call predecessors, (122), 3 states have call successors, (122) Word has length 972 [2024-11-28 03:46:09,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:09,226 INFO L225 Difference]: With dead ends: 5514 [2024-11-28 03:46:09,226 INFO L226 Difference]: Without dead ends: 4596 [2024-11-28 03:46:09,246 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 [2024-11-28 03:46:09,247 INFO L435 NwaCegarLoop]: 2379 mSDtfsCounter, 1908 mSDsluCounter, 3802 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 6181 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:09,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1908 Valid, 6181 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:46:09,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2024-11-28 03:46:10,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4432. [2024-11-28 03:46:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 2695 states have (on average 1.2315398886827458) internal successors, (3319), 2907 states have internal predecessors, (3319), 1612 states have call successors, (1612), 124 states have call predecessors, (1612), 124 states have return successors, (1877), 1595 states have call predecessors, (1877), 1610 states have call successors, (1877) [2024-11-28 03:46:10,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 6808 transitions. [2024-11-28 03:46:10,187 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 6808 transitions. Word has length 972 [2024-11-28 03:46:10,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:10,187 INFO L471 AbstractCegarLoop]: Abstraction has 4432 states and 6808 transitions. [2024-11-28 03:46:10,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 3 states have call successors, (123), 2 states have call predecessors, (123), 3 states have return successors, (122), 3 states have call predecessors, (122), 3 states have call successors, (122) [2024-11-28 03:46:10,188 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 6808 transitions. [2024-11-28 03:46:10,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2024-11-28 03:46:10,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:10,294 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:10,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:46:10,294 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:10,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:10,296 INFO L85 PathProgramCache]: Analyzing trace with hash -779402813, now seen corresponding path program 1 times [2024-11-28 03:46:10,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:10,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229851278] [2024-11-28 03:46:10,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:10,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 25325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25325 trivial. 0 not checked. [2024-11-28 03:46:12,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:12,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229851278] [2024-11-28 03:46:12,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229851278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:12,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:12,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:46:12,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628810526] [2024-11-28 03:46:12,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:12,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:46:12,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:12,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:46:12,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:46:12,313 INFO L87 Difference]: Start difference. First operand 4432 states and 6808 transitions. Second operand has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 3 states have call successors, (124), 2 states have call predecessors, (124), 3 states have return successors, (123), 3 states have call predecessors, (123), 3 states have call successors, (123) [2024-11-28 03:46:13,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:13,871 INFO L93 Difference]: Finished difference Result 8198 states and 12726 transitions. [2024-11-28 03:46:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:46:13,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 3 states have call successors, (124), 2 states have call predecessors, (124), 3 states have return successors, (123), 3 states have call predecessors, (123), 3 states have call successors, (123) Word has length 977 [2024-11-28 03:46:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:13,911 INFO L225 Difference]: With dead ends: 8198 [2024-11-28 03:46:13,912 INFO L226 Difference]: Without dead ends: 4616 [2024-11-28 03:46:13,952 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 [2024-11-28 03:46:13,953 INFO L435 NwaCegarLoop]: 2050 mSDtfsCounter, 1187 mSDsluCounter, 3294 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 5344 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:13,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 5344 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:46:13,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4616 states. [2024-11-28 03:46:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4616 to 4614. [2024-11-28 03:46:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 2821 states have (on average 1.2350230414746544) internal successors, (3484), 3035 states have internal predecessors, (3484), 1651 states have call successors, (1651), 139 states have call predecessors, (1651), 141 states have return successors, (1925), 1636 states have call predecessors, (1925), 1649 states have call successors, (1925) [2024-11-28 03:46:14,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 7060 transitions. [2024-11-28 03:46:14,899 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 7060 transitions. Word has length 977 [2024-11-28 03:46:14,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:14,900 INFO L471 AbstractCegarLoop]: Abstraction has 4614 states and 7060 transitions. [2024-11-28 03:46:14,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 3 states have call successors, (124), 2 states have call predecessors, (124), 3 states have return successors, (123), 3 states have call predecessors, (123), 3 states have call successors, (123) [2024-11-28 03:46:14,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 7060 transitions. [2024-11-28 03:46:14,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2024-11-28 03:46:14,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:14,952 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:14,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:46:14,952 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:14,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:14,955 INFO L85 PathProgramCache]: Analyzing trace with hash 284990601, now seen corresponding path program 1 times [2024-11-28 03:46:14,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:14,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594394589] [2024-11-28 03:46:14,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:14,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:16,440 INFO L134 CoverageAnalysis]: Checked inductivity of 25330 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25324 trivial. 0 not checked. [2024-11-28 03:46:16,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:16,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594394589] [2024-11-28 03:46:16,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594394589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:46:16,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83241415] [2024-11-28 03:46:16,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:16,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:46:16,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:46:16,446 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:46:16,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:46:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:18,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 3765 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:46:18,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:46:18,343 INFO L134 CoverageAnalysis]: Checked inductivity of 25330 backedges. 10562 proven. 0 refuted. 0 times theorem prover too weak. 14768 trivial. 0 not checked. [2024-11-28 03:46:18,343 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:46:18,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83241415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:18,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:46:18,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-28 03:46:18,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668450981] [2024-11-28 03:46:18,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:18,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:46:18,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:18,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:46:18,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:46:18,346 INFO L87 Difference]: Start difference. First operand 4614 states and 7060 transitions. Second operand has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 3 states have call successors, (125), 3 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2024-11-28 03:46:22,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:22,498 INFO L93 Difference]: Finished difference Result 8603 states and 13341 transitions. [2024-11-28 03:46:22,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:46:22,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 3 states have call successors, (125), 3 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 982 [2024-11-28 03:46:22,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:22,559 INFO L225 Difference]: With dead ends: 8603 [2024-11-28 03:46:22,559 INFO L226 Difference]: Without dead ends: 4714 [2024-11-28 03:46:22,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 981 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:46:22,611 INFO L435 NwaCegarLoop]: 2657 mSDtfsCounter, 1870 mSDsluCounter, 3472 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 6129 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:22,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 6129 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 03:46:22,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4714 states. [2024-11-28 03:46:23,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4714 to 4549. [2024-11-28 03:46:23,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4549 states, 2777 states have (on average 1.2286640259272597) internal successors, (3412), 2990 states have internal predecessors, (3412), 1631 states have call successors, (1631), 139 states have call predecessors, (1631), 140 states have return successors, (1853), 1615 states have call predecessors, (1853), 1629 states have call successors, (1853) [2024-11-28 03:46:23,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4549 states to 4549 states and 6896 transitions. [2024-11-28 03:46:23,448 INFO L78 Accepts]: Start accepts. Automaton has 4549 states and 6896 transitions. Word has length 982 [2024-11-28 03:46:23,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:23,449 INFO L471 AbstractCegarLoop]: Abstraction has 4549 states and 6896 transitions. [2024-11-28 03:46:23,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 3 states have call successors, (125), 3 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2024-11-28 03:46:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand 4549 states and 6896 transitions. [2024-11-28 03:46:23,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2024-11-28 03:46:23,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:23,505 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:23,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:46:23,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:46:23,706 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:23,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:23,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1139388530, now seen corresponding path program 1 times [2024-11-28 03:46:23,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:23,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91715929] [2024-11-28 03:46:23,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 25325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25325 trivial. 0 not checked. [2024-11-28 03:46:25,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:25,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91715929] [2024-11-28 03:46:25,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91715929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:25,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:25,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:46:25,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732694994] [2024-11-28 03:46:25,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:25,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:46:25,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:25,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:46:25,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:46:25,290 INFO L87 Difference]: Start difference. First operand 4549 states and 6896 transitions. Second operand has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 3 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2024-11-28 03:46:25,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:25,835 INFO L93 Difference]: Finished difference Result 7928 states and 12389 transitions. [2024-11-28 03:46:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:46:25,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 3 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 982 [2024-11-28 03:46:25,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:25,879 INFO L225 Difference]: With dead ends: 7928 [2024-11-28 03:46:25,879 INFO L226 Difference]: Without dead ends: 4376 [2024-11-28 03:46:25,928 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 [2024-11-28 03:46:25,929 INFO L435 NwaCegarLoop]: 1930 mSDtfsCounter, 788 mSDsluCounter, 4251 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 6181 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:25,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 6181 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:46:25,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4376 states. [2024-11-28 03:46:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4376 to 4376. [2024-11-28 03:46:26,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 2650 states have (on average 1.2271698113207548) internal successors, (3252), 2862 states have internal predecessors, (3252), 1590 states have call successors, (1590), 134 states have call predecessors, (1590), 135 states have return successors, (1765), 1574 states have call predecessors, (1765), 1588 states have call successors, (1765) [2024-11-28 03:46:26,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 6607 transitions. [2024-11-28 03:46:26,692 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 6607 transitions. Word has length 982 [2024-11-28 03:46:26,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:26,692 INFO L471 AbstractCegarLoop]: Abstraction has 4376 states and 6607 transitions. [2024-11-28 03:46:26,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 3 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2024-11-28 03:46:26,693 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 6607 transitions. [2024-11-28 03:46:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2024-11-28 03:46:26,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:26,739 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:26,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:46:26,740 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:26,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:26,741 INFO L85 PathProgramCache]: Analyzing trace with hash -567295153, now seen corresponding path program 1 times [2024-11-28 03:46:26,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:26,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557296677] [2024-11-28 03:46:26,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:26,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 25325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25325 trivial. 0 not checked. [2024-11-28 03:46:28,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:28,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557296677] [2024-11-28 03:46:28,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557296677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:28,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:28,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:46:28,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526495614] [2024-11-28 03:46:28,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:28,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:46:28,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:28,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:46:28,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:46:28,455 INFO L87 Difference]: Start difference. First operand 4376 states and 6607 transitions. Second operand has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 3 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2024-11-28 03:46:28,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:28,957 INFO L93 Difference]: Finished difference Result 7874 states and 12037 transitions. [2024-11-28 03:46:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:46:28,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 3 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 983 [2024-11-28 03:46:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:28,999 INFO L225 Difference]: With dead ends: 7874 [2024-11-28 03:46:28,999 INFO L226 Difference]: Without dead ends: 4536 [2024-11-28 03:46:29,033 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 [2024-11-28 03:46:29,033 INFO L435 NwaCegarLoop]: 1996 mSDtfsCounter, 1910 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 4229 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:29,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 4229 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:46:29,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4536 states. [2024-11-28 03:46:29,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4536 to 4535. [2024-11-28 03:46:29,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4535 states, 2760 states have (on average 1.2307971014492753) internal successors, (3397), 2975 states have internal predecessors, (3397), 1623 states have call successors, (1623), 148 states have call predecessors, (1623), 151 states have return successors, (1805), 1608 states have call predecessors, (1805), 1621 states have call successors, (1805) [2024-11-28 03:46:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 4535 states and 6825 transitions. [2024-11-28 03:46:29,829 INFO L78 Accepts]: Start accepts. Automaton has 4535 states and 6825 transitions. Word has length 983 [2024-11-28 03:46:29,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:29,830 INFO L471 AbstractCegarLoop]: Abstraction has 4535 states and 6825 transitions. [2024-11-28 03:46:29,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 3 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2024-11-28 03:46:29,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4535 states and 6825 transitions. [2024-11-28 03:46:29,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2024-11-28 03:46:29,857 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:29,857 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:29,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:46:29,858 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:29,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:29,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1185733335, now seen corresponding path program 1 times [2024-11-28 03:46:29,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:29,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30194073] [2024-11-28 03:46:29,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:29,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 25328 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 25324 trivial. 0 not checked. [2024-11-28 03:46:31,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:31,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30194073] [2024-11-28 03:46:31,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30194073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:46:31,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499260713] [2024-11-28 03:46:31,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:31,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:46:31,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:46:31,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:46:31,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:46:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:33,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 3751 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:46:33,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:46:33,586 INFO L134 CoverageAnalysis]: Checked inductivity of 25328 backedges. 10564 proven. 0 refuted. 0 times theorem prover too weak. 14764 trivial. 0 not checked. [2024-11-28 03:46:33,586 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:46:33,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499260713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:33,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:46:33,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-28 03:46:33,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71187779] [2024-11-28 03:46:33,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:33,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:46:33,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:33,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:46:33,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:46:33,592 INFO L87 Difference]: Start difference. First operand 4535 states and 6825 transitions. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 3 states have call successors, (125), 3 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2024-11-28 03:46:35,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:35,940 INFO L93 Difference]: Finished difference Result 6418 states and 9744 transitions. [2024-11-28 03:46:35,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:46:35,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 3 states have call successors, (125), 3 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 982 [2024-11-28 03:46:35,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:35,967 INFO L225 Difference]: With dead ends: 6418 [2024-11-28 03:46:35,967 INFO L226 Difference]: Without dead ends: 3042 [2024-11-28 03:46:35,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 981 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:46:35,998 INFO L435 NwaCegarLoop]: 2029 mSDtfsCounter, 764 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 5247 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:35,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 5247 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:46:36,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2024-11-28 03:46:36,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 3041. [2024-11-28 03:46:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 1891 states have (on average 1.2469592808038075) internal successors, (2358), 2007 states have internal predecessors, (2358), 1036 states have call successors, (1036), 109 states have call predecessors, (1036), 113 states have return successors, (1122), 1029 states have call predecessors, (1122), 1034 states have call successors, (1122) [2024-11-28 03:46:36,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4516 transitions. [2024-11-28 03:46:36,751 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4516 transitions. Word has length 982 [2024-11-28 03:46:36,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:36,751 INFO L471 AbstractCegarLoop]: Abstraction has 3041 states and 4516 transitions. [2024-11-28 03:46:36,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 3 states have call successors, (125), 3 states have call predecessors, (125), 3 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2024-11-28 03:46:36,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4516 transitions. [2024-11-28 03:46:36,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2024-11-28 03:46:36,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:36,778 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:36,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:46:36,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:46:36,979 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:36,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:36,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1642349133, now seen corresponding path program 1 times [2024-11-28 03:46:36,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:36,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044281510] [2024-11-28 03:46:36,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:36,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 25333 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25327 trivial. 0 not checked. [2024-11-28 03:46:38,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:38,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044281510] [2024-11-28 03:46:38,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044281510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:46:38,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647384110] [2024-11-28 03:46:38,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:38,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:46:38,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:46:38,443 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:46:38,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:46:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:40,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 3789 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:46:40,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:46:40,693 INFO L134 CoverageAnalysis]: Checked inductivity of 25333 backedges. 10562 proven. 0 refuted. 0 times theorem prover too weak. 14771 trivial. 0 not checked. [2024-11-28 03:46:40,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:46:40,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647384110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:40,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:46:40,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-28 03:46:40,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862698154] [2024-11-28 03:46:40,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:40,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:46:40,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:40,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:46:40,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:46:40,699 INFO L87 Difference]: Start difference. First operand 3041 states and 4516 transitions. Second operand has 5 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 3 states have call successors, (126), 3 states have call predecessors, (126), 3 states have return successors, (125), 3 states have call predecessors, (125), 3 states have call successors, (125) [2024-11-28 03:46:42,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:42,839 INFO L93 Difference]: Finished difference Result 4062 states and 6125 transitions. [2024-11-28 03:46:42,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:46:42,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 3 states have call successors, (126), 3 states have call predecessors, (126), 3 states have return successors, (125), 3 states have call predecessors, (125), 3 states have call successors, (125) Word has length 992 [2024-11-28 03:46:42,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:42,859 INFO L225 Difference]: With dead ends: 4062 [2024-11-28 03:46:42,859 INFO L226 Difference]: Without dead ends: 2059 [2024-11-28 03:46:42,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 991 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:46:42,876 INFO L435 NwaCegarLoop]: 1917 mSDtfsCounter, 760 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 4948 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:42,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 4948 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:46:42,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2024-11-28 03:46:43,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 1969. [2024-11-28 03:46:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1239 states have (on average 1.2453591606133978) internal successors, (1543), 1298 states have internal predecessors, (1543), 670 states have call successors, (670), 59 states have call predecessors, (670), 59 states have return successors, (695), 665 states have call predecessors, (695), 668 states have call successors, (695) [2024-11-28 03:46:43,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2908 transitions. [2024-11-28 03:46:43,548 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2908 transitions. Word has length 992 [2024-11-28 03:46:43,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:43,549 INFO L471 AbstractCegarLoop]: Abstraction has 1969 states and 2908 transitions. [2024-11-28 03:46:43,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 3 states have call successors, (126), 3 states have call predecessors, (126), 3 states have return successors, (125), 3 states have call predecessors, (125), 3 states have call successors, (125) [2024-11-28 03:46:43,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2908 transitions. [2024-11-28 03:46:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2024-11-28 03:46:43,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:43,567 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:43,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:46:43,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:46:43,769 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:43,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:43,770 INFO L85 PathProgramCache]: Analyzing trace with hash 881176595, now seen corresponding path program 1 times [2024-11-28 03:46:43,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:43,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318425330] [2024-11-28 03:46:43,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:43,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 25345 backedges. 186 proven. 480 refuted. 0 times theorem prover too weak. 24679 trivial. 0 not checked. [2024-11-28 03:47:15,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:15,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318425330] [2024-11-28 03:47:15,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318425330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:15,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318777877] [2024-11-28 03:47:15,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:15,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:15,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:15,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:15,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:47:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:21,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 3775 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-28 03:47:21,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:22,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 15 [2024-11-28 03:47:27,291 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 25 treesize of output 13 [2024-11-28 03:47:27,365 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 19 treesize of output 7 [2024-11-28 03:47:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 25345 backedges. 11378 proven. 0 refuted. 0 times theorem prover too weak. 13967 trivial. 0 not checked. [2024-11-28 03:47:30,342 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:30,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318777877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:30,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:30,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [24] total 39 [2024-11-28 03:47:30,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802131967] [2024-11-28 03:47:30,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:30,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:47:30,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:30,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:47:30,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1330, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 03:47:30,347 INFO L87 Difference]: Start difference. First operand 1969 states and 2908 transitions. Second operand has 17 states, 16 states have (on average 25.0625) internal successors, (401), 14 states have internal predecessors, (401), 7 states have call successors, (127), 6 states have call predecessors, (127), 7 states have return successors, (126), 7 states have call predecessors, (126), 7 states have call successors, (126) [2024-11-28 03:47:40,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:47:44,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:47:48,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:47:52,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:47:56,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:48:00,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:48:04,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:48:08,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:48:12,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:48:16,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:48:20,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:48:24,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:48:53,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:48:53,335 INFO L93 Difference]: Finished difference Result 5203 states and 7904 transitions. [2024-11-28 03:48:53,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 03:48:53,336 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 25.0625) internal successors, (401), 14 states have internal predecessors, (401), 7 states have call successors, (127), 6 states have call predecessors, (127), 7 states have return successors, (126), 7 states have call predecessors, (126), 7 states have call successors, (126) Word has length 992 [2024-11-28 03:48:53,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:48:53,364 INFO L225 Difference]: With dead ends: 5203 [2024-11-28 03:48:53,364 INFO L226 Difference]: Without dead ends: 4185 [2024-11-28 03:48:53,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 989 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1499 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=610, Invalid=4220, Unknown=0, NotChecked=0, Total=4830 [2024-11-28 03:48:53,375 INFO L435 NwaCegarLoop]: 1888 mSDtfsCounter, 2844 mSDsluCounter, 3561 mSDsCounter, 0 mSdLazyCounter, 10652 mSolverCounterSat, 2467 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3002 SdHoareTripleChecker+Valid, 5449 SdHoareTripleChecker+Invalid, 13131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2467 IncrementalHoareTripleChecker+Valid, 10652 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:48:53,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3002 Valid, 5449 Invalid, 13131 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2467 Valid, 10652 Invalid, 12 Unknown, 0 Unchecked, 78.6s Time] [2024-11-28 03:48:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2024-11-28 03:48:54,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 3945. [2024-11-28 03:48:54,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 2537 states have (on average 1.2175798186834845) internal successors, (3089), 2681 states have internal predecessors, (3089), 1210 states have call successors, (1210), 167 states have call predecessors, (1210), 197 states have return successors, (1662), 1206 states have call predecessors, (1662), 1208 states have call successors, (1662) [2024-11-28 03:48:54,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5961 transitions. [2024-11-28 03:48:54,700 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5961 transitions. Word has length 992 [2024-11-28 03:48:54,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:48:54,700 INFO L471 AbstractCegarLoop]: Abstraction has 3945 states and 5961 transitions. [2024-11-28 03:48:54,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 25.0625) internal successors, (401), 14 states have internal predecessors, (401), 7 states have call successors, (127), 6 states have call predecessors, (127), 7 states have return successors, (126), 7 states have call predecessors, (126), 7 states have call successors, (126) [2024-11-28 03:48:54,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5961 transitions. [2024-11-28 03:48:54,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2024-11-28 03:48:54,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:48:54,726 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:48:54,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:48:54,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:48:54,927 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:48:54,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:54,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1819627437, now seen corresponding path program 1 times [2024-11-28 03:48:54,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:54,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967482044] [2024-11-28 03:48:54,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:54,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 25345 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25345 trivial. 0 not checked. [2024-11-28 03:48:59,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:48:59,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967482044] [2024-11-28 03:48:59,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967482044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:48:59,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:48:59,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:48:59,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550252415] [2024-11-28 03:48:59,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:48:59,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:48:59,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:59,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:48:59,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:48:59,782 INFO L87 Difference]: Start difference. First operand 3945 states and 5961 transitions. Second operand has 9 states, 8 states have (on average 48.25) internal successors, (386), 8 states have internal predecessors, (386), 6 states have call successors, (126), 3 states have call predecessors, (126), 2 states have return successors, (125), 4 states have call predecessors, (125), 5 states have call successors, (125) [2024-11-28 03:49:11,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:11,295 INFO L93 Difference]: Finished difference Result 5235 states and 7784 transitions. [2024-11-28 03:49:11,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:49:11,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 48.25) internal successors, (386), 8 states have internal predecessors, (386), 6 states have call successors, (126), 3 states have call predecessors, (126), 2 states have return successors, (125), 4 states have call predecessors, (125), 5 states have call successors, (125) Word has length 992 [2024-11-28 03:49:11,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:11,331 INFO L225 Difference]: With dead ends: 5235 [2024-11-28 03:49:11,332 INFO L226 Difference]: Without dead ends: 5233 [2024-11-28 03:49:11,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:49:11,339 INFO L435 NwaCegarLoop]: 1296 mSDtfsCounter, 2618 mSDsluCounter, 4935 mSDsCounter, 0 mSdLazyCounter, 3653 mSolverCounterSat, 1582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 6231 SdHoareTripleChecker+Invalid, 5235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1582 IncrementalHoareTripleChecker+Valid, 3653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:11,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3036 Valid, 6231 Invalid, 5235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1582 Valid, 3653 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-28 03:49:11,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5233 states. [2024-11-28 03:49:12,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5233 to 5103. [2024-11-28 03:49:12,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 3280 states have (on average 1.2045731707317073) internal successors, (3951), 3439 states have internal predecessors, (3951), 1534 states have call successors, (1534), 235 states have call predecessors, (1534), 288 states have return successors, (1900), 1540 states have call predecessors, (1900), 1531 states have call successors, (1900) [2024-11-28 03:49:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 7385 transitions. [2024-11-28 03:49:12,498 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 7385 transitions. Word has length 992 [2024-11-28 03:49:12,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:12,499 INFO L471 AbstractCegarLoop]: Abstraction has 5103 states and 7385 transitions. [2024-11-28 03:49:12,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 48.25) internal successors, (386), 8 states have internal predecessors, (386), 6 states have call successors, (126), 3 states have call predecessors, (126), 2 states have return successors, (125), 4 states have call predecessors, (125), 5 states have call successors, (125) [2024-11-28 03:49:12,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 7385 transitions. [2024-11-28 03:49:12,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 945 [2024-11-28 03:49:12,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:12,536 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:12,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:49:12,536 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:12,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:12,537 INFO L85 PathProgramCache]: Analyzing trace with hash -58185727, now seen corresponding path program 1 times [2024-11-28 03:49:12,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:12,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556712546] [2024-11-28 03:49:12,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:12,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 24662 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 24640 trivial. 0 not checked. [2024-11-28 03:49:17,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:17,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556712546] [2024-11-28 03:49:17,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556712546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:17,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:17,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:49:17,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731559014] [2024-11-28 03:49:17,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:17,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:49:17,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:17,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:49:17,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:49:17,095 INFO L87 Difference]: Start difference. First operand 5103 states and 7385 transitions. Second operand has 6 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 2 states have call successors, (123), 2 states have call predecessors, (123), 1 states have return successors, (122), 1 states have call predecessors, (122), 1 states have call successors, (122) [2024-11-28 03:49:18,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:18,712 INFO L93 Difference]: Finished difference Result 5111 states and 7391 transitions. [2024-11-28 03:49:18,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:49:18,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 2 states have call successors, (123), 2 states have call predecessors, (123), 1 states have return successors, (122), 1 states have call predecessors, (122), 1 states have call successors, (122) Word has length 944 [2024-11-28 03:49:18,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:18,750 INFO L225 Difference]: With dead ends: 5111 [2024-11-28 03:49:18,750 INFO L226 Difference]: Without dead ends: 5109 [2024-11-28 03:49:18,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:49:18,755 INFO L435 NwaCegarLoop]: 1898 mSDtfsCounter, 1472 mSDsluCounter, 6346 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 8244 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:18,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 8244 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:49:18,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5109 states. [2024-11-28 03:49:20,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5109 to 5107. [2024-11-28 03:49:20,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 3283 states have (on average 1.2043862321047822) internal successors, (3954), 3442 states have internal predecessors, (3954), 1534 states have call successors, (1534), 236 states have call predecessors, (1534), 289 states have return successors, (1900), 1540 states have call predecessors, (1900), 1531 states have call successors, (1900) [2024-11-28 03:49:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 7388 transitions. [2024-11-28 03:49:20,290 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 7388 transitions. Word has length 944 [2024-11-28 03:49:20,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:20,291 INFO L471 AbstractCegarLoop]: Abstraction has 5107 states and 7388 transitions. [2024-11-28 03:49:20,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 2 states have call successors, (123), 2 states have call predecessors, (123), 1 states have return successors, (122), 1 states have call predecessors, (122), 1 states have call successors, (122) [2024-11-28 03:49:20,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 7388 transitions. [2024-11-28 03:49:20,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 999 [2024-11-28 03:49:20,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:20,317 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:20,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:49:20,318 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:20,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:20,319 INFO L85 PathProgramCache]: Analyzing trace with hash -678719074, now seen corresponding path program 1 times [2024-11-28 03:49:20,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:20,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122748367] [2024-11-28 03:49:20,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:20,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 25347 backedges. 95 proven. 243 refuted. 0 times theorem prover too weak. 25009 trivial. 0 not checked. [2024-11-28 03:49:48,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:48,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122748367] [2024-11-28 03:49:48,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122748367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:49:48,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619744154] [2024-11-28 03:49:48,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:48,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:49:48,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:49:48,013 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:49:48,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:49:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:53,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 3783 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-28 03:49:53,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:49:54,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 87 [2024-11-28 03:49:55,208 INFO L224 Elim1Store]: Index analysis took 903 ms [2024-11-28 03:49:55,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 276 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 46 [2024-11-28 03:50:18,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:18,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 195 treesize of output 125 [2024-11-28 03:50:21,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:21,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 38 [2024-11-28 03:50:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 25347 backedges. 11690 proven. 9 refuted. 0 times theorem prover too weak. 13648 trivial. 0 not checked. [2024-11-28 03:50:21,395 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:50:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 25347 backedges. 272 proven. 729 refuted. 0 times theorem prover too weak. 24346 trivial. 0 not checked. [2024-11-28 03:50:29,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619744154] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:50:29,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:50:29,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 18] total 50 [2024-11-28 03:50:29,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016234866] [2024-11-28 03:50:29,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:50:29,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-28 03:50:29,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:29,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-28 03:50:29,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=2105, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 03:50:29,234 INFO L87 Difference]: Start difference. First operand 5107 states and 7388 transitions. Second operand has 50 states, 42 states have (on average 22.333333333333332) internal successors, (938), 45 states have internal predecessors, (938), 17 states have call successors, (278), 6 states have call predecessors, (278), 11 states have return successors, (277), 14 states have call predecessors, (277), 17 states have call successors, (277) [2024-11-28 03:50:33,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:34,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:37,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:38,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:40,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:42,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:44,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:45,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:47,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:48,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:51,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:50:53,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:51:18,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:51:22,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:51:26,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:51:30,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:51:34,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:51:38,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:51:42,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:52:06,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:52:17,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:52:25,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:54:35,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:35,069 INFO L93 Difference]: Finished difference Result 37864 states and 52370 transitions. [2024-11-28 03:54:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2024-11-28 03:54:35,070 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 42 states have (on average 22.333333333333332) internal successors, (938), 45 states have internal predecessors, (938), 17 states have call successors, (278), 6 states have call predecessors, (278), 11 states have return successors, (277), 14 states have call predecessors, (277), 17 states have call successors, (277) Word has length 998 [2024-11-28 03:54:35,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:35,228 INFO L225 Difference]: With dead ends: 37864 [2024-11-28 03:54:35,228 INFO L226 Difference]: Without dead ends: 34118 [2024-11-28 03:54:35,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2166 GetRequests, 1997 SyntacticMatches, 2 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8920 ImplicationChecksByTransitivity, 39.1s TimeCoverageRelationStatistics Valid=5161, Invalid=23231, Unknown=0, NotChecked=0, Total=28392 [2024-11-28 03:54:35,257 INFO L435 NwaCegarLoop]: 1736 mSDtfsCounter, 18008 mSDsluCounter, 18375 mSDsCounter, 0 mSdLazyCounter, 32192 mSolverCounterSat, 18713 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 186.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18118 SdHoareTripleChecker+Valid, 20111 SdHoareTripleChecker+Invalid, 50915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 18713 IncrementalHoareTripleChecker+Valid, 32192 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 194.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:54:35,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18118 Valid, 20111 Invalid, 50915 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [18713 Valid, 32192 Invalid, 10 Unknown, 0 Unchecked, 194.7s Time] [2024-11-28 03:54:35,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34118 states. [2024-11-28 03:54:45,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34118 to 29085. [2024-11-28 03:54:45,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29085 states, 19279 states have (on average 1.1748534675035012) internal successors, (22650), 19952 states have internal predecessors, (22650), 7354 states have call successors, (7354), 2038 states have call predecessors, (7354), 2451 states have return successors, (10376), 7382 states have call predecessors, (10376), 7351 states have call successors, (10376) [2024-11-28 03:54:45,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29085 states to 29085 states and 40380 transitions. [2024-11-28 03:54:46,000 INFO L78 Accepts]: Start accepts. Automaton has 29085 states and 40380 transitions. Word has length 998 [2024-11-28 03:54:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:54:46,001 INFO L471 AbstractCegarLoop]: Abstraction has 29085 states and 40380 transitions. [2024-11-28 03:54:46,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 42 states have (on average 22.333333333333332) internal successors, (938), 45 states have internal predecessors, (938), 17 states have call successors, (278), 6 states have call predecessors, (278), 11 states have return successors, (277), 14 states have call predecessors, (277), 17 states have call successors, (277) [2024-11-28 03:54:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 29085 states and 40380 transitions. [2024-11-28 03:54:46,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2024-11-28 03:54:46,116 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:46,117 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:46,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:54:46,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d4f667-e7c7-45b5-bac3-4f9a5085b9e4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 03:54:46,317 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:46,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:46,318 INFO L85 PathProgramCache]: Analyzing trace with hash -275074634, now seen corresponding path program 1 times [2024-11-28 03:54:46,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:46,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495138964] [2024-11-28 03:54:46,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:46,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 24708 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24684 trivial. 0 not checked. [2024-11-28 03:54:51,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:51,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495138964] [2024-11-28 03:54:51,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495138964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:51,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:51,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:54:51,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349420889] [2024-11-28 03:54:51,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:51,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:54:51,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:51,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:54:51,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:54:51,760 INFO L87 Difference]: Start difference. First operand 29085 states and 40380 transitions. Second operand has 6 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 2 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-28 03:55:00,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:00,378 INFO L93 Difference]: Finished difference Result 29093 states and 40386 transitions. [2024-11-28 03:55:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:55:00,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 2 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 950 [2024-11-28 03:55:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:00,485 INFO L225 Difference]: With dead ends: 29093 [2024-11-28 03:55:00,485 INFO L226 Difference]: Without dead ends: 29091 [2024-11-28 03:55:00,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:55:00,499 INFO L435 NwaCegarLoop]: 1898 mSDtfsCounter, 1470 mSDsluCounter, 6345 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 8243 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:00,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 8243 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:55:00,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29091 states. [2024-11-28 03:55:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29091 to 29089. [2024-11-28 03:55:09,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29089 states, 19282 states have (on average 1.1748262628358055) internal successors, (22653), 19955 states have internal predecessors, (22653), 7354 states have call successors, (7354), 2039 states have call predecessors, (7354), 2452 states have return successors, (10376), 7382 states have call predecessors, (10376), 7351 states have call successors, (10376) [2024-11-28 03:55:09,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29089 states to 29089 states and 40383 transitions. [2024-11-28 03:55:09,365 INFO L78 Accepts]: Start accepts. Automaton has 29089 states and 40383 transitions. Word has length 950 [2024-11-28 03:55:09,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:09,366 INFO L471 AbstractCegarLoop]: Abstraction has 29089 states and 40383 transitions. [2024-11-28 03:55:09,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 2 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-28 03:55:09,367 INFO L276 IsEmpty]: Start isEmpty. Operand 29089 states and 40383 transitions. [2024-11-28 03:55:09,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2024-11-28 03:55:09,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:09,517 INFO L218 NwaCegarLoop]: trace histogram [111, 111, 111, 14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:09,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:55:09,518 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:09,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:09,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1831938217, now seen corresponding path program 1 times [2024-11-28 03:55:09,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:09,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977421211] [2024-11-28 03:55:09,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:09,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:13,846 INFO L134 CoverageAnalysis]: Checked inductivity of 24758 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 24732 trivial. 0 not checked. [2024-11-28 03:55:13,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:13,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977421211] [2024-11-28 03:55:13,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977421211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:13,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:13,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:55:13,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068332956] [2024-11-28 03:55:13,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:13,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:55:13,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:13,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:55:13,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:55:13,849 INFO L87 Difference]: Start difference. First operand 29089 states and 40383 transitions. Second operand has 6 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 2 states have call successors, (125), 2 states have call predecessors, (125), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124)