./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.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_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/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_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/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_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/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 d1acaf5881e7bc6fb96063443cb57a4aeaaabd457c070b840e9f79d5e20a5abf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:45:46,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:45:46,687 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:45:46,698 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:45:46,699 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:45:46,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:45:46,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:45:46,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:45:46,747 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:45:46,748 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:45:46,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:45:46,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:45:46,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:45:46,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:45:46,751 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:45:46,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:45:46,751 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:45:46,752 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:45:46,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:45:46,752 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:45:46,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:45:46,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:45:46,752 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:45:46,752 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:45:46,752 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:45:46,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:45:46,752 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:45:46,753 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:45:46,753 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:45:46,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:45:46,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:45:46,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:45:46,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:46,755 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:45:46,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:45:46,755 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:45:46,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:45:46,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:46,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:45:46,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:45:46,756 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:45:46,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:45:46,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:45:46,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:45:46,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:45:46,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:45:46,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:45:46,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:45:46,757 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_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/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 -> d1acaf5881e7bc6fb96063443cb57a4aeaaabd457c070b840e9f79d5e20a5abf [2024-11-28 02:45:47,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:45:47,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:45:47,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:45:47,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:45:47,182 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:45:47,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c [2024-11-28 02:45:50,732 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/data/dfd034bbc/23f9a586c8e542f684fb2199418708a7/FLAG0bdca1c4c [2024-11-28 02:45:51,326 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:45:51,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c [2024-11-28 02:45:51,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/data/dfd034bbc/23f9a586c8e542f684fb2199418708a7/FLAG0bdca1c4c [2024-11-28 02:45:51,827 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/data/dfd034bbc/23f9a586c8e542f684fb2199418708a7 [2024-11-28 02:45:51,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:45:51,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:45:51,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:45:51,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:45:51,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:45:51,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:45:51" (1/1) ... [2024-11-28 02:45:51,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f820f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:51, skipping insertion in model container [2024-11-28 02:45:51,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:45:51" (1/1) ... [2024-11-28 02:45:51,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:45:52,122 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_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c[2017,2030] [2024-11-28 02:45:52,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:45:52,616 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:45:52,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok3.i","-S") [47] [2024-11-28 02:45:52,637 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_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c[2017,2030] [2024-11-28 02:45:52,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:45:53,075 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:45:53,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53 WrapperNode [2024-11-28 02:45:53,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:45:53,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:45:53,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:45:53,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:45:53,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,441 INFO L138 Inliner]: procedures = 63, calls = 2139, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 4507 [2024-11-28 02:45:53,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:45:53,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:45:53,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:45:53,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:45:53,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,507 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,629 INFO L175 MemorySlicer]: Split 1626 memory accesses to 22 slices as follows [2, 50, 5, 3, 264, 305, 4, 156, 113, 7, 79, 57, 82, 105, 82, 2, 8, 105, 82, 105, 2, 8]. 19 percent of accesses are in the largest equivalence class. The 223 initializations are split as follows [2, 0, 2, 1, 24, 24, 0, 2, 2, 2, 1, 1, 27, 27, 27, 0, 0, 27, 27, 27, 0, 0]. The 257 writes are split as follows [0, 26, 1, 1, 24, 24, 0, 2, 2, 3, 1, 1, 28, 26, 28, 1, 4, 26, 28, 26, 1, 4]. [2024-11-28 02:45:53,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,885 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:54,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:45:54,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:45:54,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:45:54,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:45:54,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:54,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:54,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:54,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:45:54,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:45:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:45:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-28 02:45:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-28 02:45:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-28 02:45:54,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-28 02:45:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 02:45:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 02:45:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 02:45:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 02:45:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 02:45:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 02:45:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 02:45:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 02:45:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 02:45:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-28 02:45:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-28 02:45:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:45:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-28 02:45:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-28 02:45:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2024-11-28 02:45:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-28 02:45:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 02:45:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 02:45:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 02:45:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 02:45:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 02:45:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-28 02:45:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-28 02:45:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-28 02:45:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-28 02:45:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-28 02:45:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-28 02:45:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-28 02:45:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-28 02:45:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-28 02:45:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-28 02:45:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-28 02:45:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-28 02:45:54,199 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-28 02:45:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-28 02:45:54,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-28 02:45:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-28 02:45:54,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-28 02:45:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-28 02:45:54,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-28 02:45:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:45:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-28 02:45:54,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-28 02:45:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:45:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:45:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:45:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:45:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-28 02:45:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-28 02:45:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-28 02:45:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-28 02:45:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-28 02:45:54,202 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-28 02:45:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-28 02:45:54,202 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-28 02:45:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2024-11-28 02:45:54,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2024-11-28 02:45:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:45:54,202 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:45:54,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:45:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:45:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:45:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:45:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:45:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:45:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 02:45:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 02:45:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 02:45:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 02:45:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 02:45:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 02:45:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 02:45:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 02:45:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 02:45:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 02:45:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-28 02:45:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-28 02:45:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-28 02:45:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-28 02:45:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-28 02:45:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-28 02:45:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:45:54,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:45:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-28 02:45:54,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-28 02:45:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-28 02:45:54,208 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-28 02:45:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-28 02:45:54,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-28 02:45:54,955 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:45:54,958 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:46:04,243 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2024-11-28 02:46:04,244 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:46:04,320 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:46:04,321 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:46:04,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:46:04 BoogieIcfgContainer [2024-11-28 02:46:04,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:46:04,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:46:04,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:46:04,333 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:46:04,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:45:51" (1/3) ... [2024-11-28 02:46:04,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f00abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:46:04, skipping insertion in model container [2024-11-28 02:46:04,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53" (2/3) ... [2024-11-28 02:46:04,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f00abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:46:04, skipping insertion in model container [2024-11-28 02:46:04,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:46:04" (3/3) ... [2024-11-28 02:46:04,338 INFO L128 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M1.c [2024-11-28 02:46:04,363 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:46:04,366 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekcba_nxt.3.M1.c that has 19 procedures, 1291 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:46:04,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:46:04,539 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;@ccd0fd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:46:04,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:46:04,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 1291 states, 816 states have (on average 1.2745098039215685) internal successors, (1040), 847 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 02:46:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2024-11-28 02:46:04,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:04,679 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 02:46:04,680 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:04,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:04,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1393177188, now seen corresponding path program 1 times [2024-11-28 02:46:04,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:46:04,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912558652] [2024-11-28 02:46:04,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:04,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:46:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:07,619 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 02:46:07,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:46:07,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912558652] [2024-11-28 02:46:07,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912558652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:46:07,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41924333] [2024-11-28 02:46:07,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:07,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:46:07,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:46:07,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:46:07,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:46:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:10,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 3240 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:46:10,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:46:10,207 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 02:46:10,207 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:46:10,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41924333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:10,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:46:10,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:46:10,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586459235] [2024-11-28 02:46:10,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:10,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:46:10,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:46:10,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:46:10,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:46:10,249 INFO L87 Difference]: Start difference. First operand has 1291 states, 816 states have (on average 1.2745098039215685) internal successors, (1040), 847 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 02:46:10,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:10,445 INFO L93 Difference]: Finished difference Result 2577 states and 4331 transitions. [2024-11-28 02:46:10,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:46:10,447 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 02:46:10,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:10,475 INFO L225 Difference]: With dead ends: 2577 [2024-11-28 02:46:10,476 INFO L226 Difference]: Without dead ends: 1283 [2024-11-28 02:46:10,498 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 02:46:10,503 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 02:46:10,503 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 02:46:10,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2024-11-28 02:46:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283. [2024-11-28 02:46:10,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 809 states have (on average 1.2719406674907292) internal successors, (1029), 840 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 02:46:10,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1938 transitions. [2024-11-28 02:46:10,910 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1938 transitions. Word has length 878 [2024-11-28 02:46:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:10,912 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1938 transitions. [2024-11-28 02:46:10,913 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 02:46:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1938 transitions. [2024-11-28 02:46:10,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2024-11-28 02:46:10,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:10,957 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 02:46:10,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:46:11,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:46:11,158 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:11,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:11,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1637496266, now seen corresponding path program 1 times [2024-11-28 02:46:11,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:46:11,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524492159] [2024-11-28 02:46:11,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:11,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:46:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:19,698 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 02:46:19,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:46:19,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524492159] [2024-11-28 02:46:19,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524492159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:19,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:19,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:46:19,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840165201] [2024-11-28 02:46:19,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:19,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:46:19,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:46:19,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:46:19,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:46:19,705 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 02:46:20,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:20,504 INFO L93 Difference]: Finished difference Result 1785 states and 2696 transitions. [2024-11-28 02:46:20,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:46:20,505 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 02:46:20,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:20,536 INFO L225 Difference]: With dead ends: 1785 [2024-11-28 02:46:20,536 INFO L226 Difference]: Without dead ends: 1783 [2024-11-28 02:46:20,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 02:46:20,541 INFO L435 NwaCegarLoop]: 1929 mSDtfsCounter, 1512 mSDsluCounter, 6442 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:46:20,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 8371 Invalid, 190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:46:20,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2024-11-28 02:46:20,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1781. [2024-11-28 02:46:20,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1103 states have (on average 1.2538531278331821) internal successors, (1383), 1160 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 02:46:20,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2693 transitions. [2024-11-28 02:46:20,940 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2693 transitions. Word has length 878 [2024-11-28 02:46:20,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:20,946 INFO L471 AbstractCegarLoop]: Abstraction has 1781 states and 2693 transitions. [2024-11-28 02:46:20,946 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 02:46:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2693 transitions. [2024-11-28 02:46:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2024-11-28 02:46:21,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:21,005 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 02:46:21,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:46:21,006 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:21,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:21,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1981183297, now seen corresponding path program 1 times [2024-11-28 02:46:21,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:46:21,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437745710] [2024-11-28 02:46:21,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:21,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:46:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:27,937 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 02:46:27,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:46:27,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437745710] [2024-11-28 02:46:27,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437745710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:27,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:27,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:46:27,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331285641] [2024-11-28 02:46:27,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:27,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:46:27,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:46:27,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:46:27,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:46:27,948 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 02:46:28,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:28,798 INFO L93 Difference]: Finished difference Result 1789 states and 2699 transitions. [2024-11-28 02:46:28,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:46:28,799 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 02:46:28,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:28,819 INFO L225 Difference]: With dead ends: 1789 [2024-11-28 02:46:28,819 INFO L226 Difference]: Without dead ends: 1787 [2024-11-28 02:46:28,821 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 02:46:28,822 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, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:46:28,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:46:28,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2024-11-28 02:46:29,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1785. [2024-11-28 02:46:29,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1106 states have (on average 1.2531645569620253) internal successors, (1386), 1163 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 02:46:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2696 transitions. [2024-11-28 02:46:29,277 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2696 transitions. Word has length 884 [2024-11-28 02:46:29,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:29,280 INFO L471 AbstractCegarLoop]: Abstraction has 1785 states and 2696 transitions. [2024-11-28 02:46:29,280 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 02:46:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2696 transitions. [2024-11-28 02:46:29,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2024-11-28 02:46:29,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:29,344 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 02:46:29,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:46:29,345 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:29,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:29,346 INFO L85 PathProgramCache]: Analyzing trace with hash -590990070, now seen corresponding path program 1 times [2024-11-28 02:46:29,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:46:29,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774938733] [2024-11-28 02:46:29,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:29,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:46:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:34,757 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 02:46:34,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:46:34,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774938733] [2024-11-28 02:46:34,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774938733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:34,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:34,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:46:34,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626382266] [2024-11-28 02:46:34,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:34,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:46:34,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:46:34,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:46:34,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:46:34,762 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 02:46:35,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:35,577 INFO L93 Difference]: Finished difference Result 1793 states and 2702 transitions. [2024-11-28 02:46:35,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:46:35,579 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 02:46:35,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:35,605 INFO L225 Difference]: With dead ends: 1793 [2024-11-28 02:46:35,606 INFO L226 Difference]: Without dead ends: 1791 [2024-11-28 02:46:35,608 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 02:46:35,612 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, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:46:35,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:46:35,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2024-11-28 02:46:36,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1789. [2024-11-28 02:46:36,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1109 states have (on average 1.2524797114517583) internal successors, (1389), 1166 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 02:46:36,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2699 transitions. [2024-11-28 02:46:36,060 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2699 transitions. Word has length 890 [2024-11-28 02:46:36,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:36,063 INFO L471 AbstractCegarLoop]: Abstraction has 1789 states and 2699 transitions. [2024-11-28 02:46:36,064 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 02:46:36,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2699 transitions. [2024-11-28 02:46:36,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2024-11-28 02:46:36,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:36,097 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 02:46:36,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:46:36,097 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:36,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:36,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1766456559, now seen corresponding path program 1 times [2024-11-28 02:46:36,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:46:36,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109261297] [2024-11-28 02:46:36,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:36,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:46:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:40,918 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 02:46:40,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:46:40,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109261297] [2024-11-28 02:46:40,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109261297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:40,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:40,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:46:40,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589203105] [2024-11-28 02:46:40,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:40,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:46:40,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:46:40,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:46:40,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:46:40,923 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 02:46:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:41,780 INFO L93 Difference]: Finished difference Result 1797 states and 2705 transitions. [2024-11-28 02:46:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:46:41,781 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 02:46:41,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:41,806 INFO L225 Difference]: With dead ends: 1797 [2024-11-28 02:46:41,806 INFO L226 Difference]: Without dead ends: 1795 [2024-11-28 02:46:41,809 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 02:46:41,810 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 02:46:41,812 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 02:46:41,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2024-11-28 02:46:42,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1793. [2024-11-28 02:46:42,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1112 states have (on average 1.2517985611510791) internal successors, (1392), 1169 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 02:46:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2702 transitions. [2024-11-28 02:46:42,227 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2702 transitions. Word has length 896 [2024-11-28 02:46:42,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:42,230 INFO L471 AbstractCegarLoop]: Abstraction has 1793 states and 2702 transitions. [2024-11-28 02:46:42,231 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 02:46:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2702 transitions. [2024-11-28 02:46:42,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2024-11-28 02:46:42,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:42,261 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 02:46:42,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:46:42,261 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:42,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1696220970, now seen corresponding path program 1 times [2024-11-28 02:46:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:46:42,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396269552] [2024-11-28 02:46:42,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:46:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:47,484 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 02:46:47,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:46:47,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396269552] [2024-11-28 02:46:47,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396269552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:47,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:47,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:46:47,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450675563] [2024-11-28 02:46:47,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:47,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:46:47,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:46:47,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:46:47,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:46:47,492 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 02:46:48,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:48,480 INFO L93 Difference]: Finished difference Result 1801 states and 2708 transitions. [2024-11-28 02:46:48,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:46:48,482 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 02:46:48,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:48,509 INFO L225 Difference]: With dead ends: 1801 [2024-11-28 02:46:48,509 INFO L226 Difference]: Without dead ends: 1799 [2024-11-28 02:46:48,512 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 02:46:48,514 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1501 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:46:48,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:46:48,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2024-11-28 02:46:49,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1797. [2024-11-28 02:46:49,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1115 states have (on average 1.251121076233184) internal successors, (1395), 1172 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 02:46:49,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2705 transitions. [2024-11-28 02:46:49,149 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2705 transitions. Word has length 902 [2024-11-28 02:46:49,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:49,152 INFO L471 AbstractCegarLoop]: Abstraction has 1797 states and 2705 transitions. [2024-11-28 02:46:49,156 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 02:46:49,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2705 transitions. [2024-11-28 02:46:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 909 [2024-11-28 02:46:49,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:49,206 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 02:46:49,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:46:49,207 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:49,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:49,208 INFO L85 PathProgramCache]: Analyzing trace with hash 7081945, now seen corresponding path program 1 times [2024-11-28 02:46:49,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:46:49,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126621764] [2024-11-28 02:46:49,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:49,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:46:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:55,208 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 02:46:55,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:46:55,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126621764] [2024-11-28 02:46:55,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126621764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:55,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:55,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:46:55,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682404507] [2024-11-28 02:46:55,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:55,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:46:55,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:46:55,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:46:55,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:46:55,214 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 02:46:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:56,104 INFO L93 Difference]: Finished difference Result 1805 states and 2711 transitions. [2024-11-28 02:46:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:46:56,106 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 02:46:56,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:56,131 INFO L225 Difference]: With dead ends: 1805 [2024-11-28 02:46:56,131 INFO L226 Difference]: Without dead ends: 1803 [2024-11-28 02:46:56,133 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 02:46:56,134 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 02:46:56,135 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 02:46:56,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2024-11-28 02:46:56,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1801. [2024-11-28 02:46:56,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1118 states have (on average 1.2504472271914133) internal successors, (1398), 1175 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 02:46:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2708 transitions. [2024-11-28 02:46:56,755 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2708 transitions. Word has length 908 [2024-11-28 02:46:56,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:56,758 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2708 transitions. [2024-11-28 02:46:56,760 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 02:46:56,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2708 transitions. [2024-11-28 02:46:56,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2024-11-28 02:46:56,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:56,800 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 02:46:56,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:46:56,801 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:56,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:56,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1982946918, now seen corresponding path program 1 times [2024-11-28 02:46:56,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:46:56,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083846477] [2024-11-28 02:46:56,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:56,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:46:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:01,232 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 02:47:01,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:01,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083846477] [2024-11-28 02:47:01,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083846477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:01,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:47:01,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:47:01,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718561447] [2024-11-28 02:47:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:01,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:47:01,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:01,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:47:01,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:47:01,237 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 02:47:02,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:02,133 INFO L93 Difference]: Finished difference Result 1809 states and 2714 transitions. [2024-11-28 02:47:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:47:02,134 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 02:47:02,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:02,151 INFO L225 Difference]: With dead ends: 1809 [2024-11-28 02:47:02,151 INFO L226 Difference]: Without dead ends: 1807 [2024-11-28 02:47:02,153 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 02:47:02,154 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1497 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:47:02,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:47:02,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2024-11-28 02:47:02,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1805. [2024-11-28 02:47:02,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1121 states have (on average 1.2497769848349687) internal successors, (1401), 1178 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 02:47:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2711 transitions. [2024-11-28 02:47:02,545 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2711 transitions. Word has length 914 [2024-11-28 02:47:02,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:02,548 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2711 transitions. [2024-11-28 02:47:02,548 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 02:47:02,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2711 transitions. [2024-11-28 02:47:02,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 921 [2024-11-28 02:47:02,573 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:02,574 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 02:47:02,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:47:02,574 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:02,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:02,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1314514841, now seen corresponding path program 1 times [2024-11-28 02:47:02,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:02,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479875620] [2024-11-28 02:47:02,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:02,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:07,653 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 02:47:07,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:07,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479875620] [2024-11-28 02:47:07,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479875620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:07,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:47:07,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:47:07,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797830139] [2024-11-28 02:47:07,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:07,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:47:07,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:07,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:47:07,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:47:07,658 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 02:47:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:08,511 INFO L93 Difference]: Finished difference Result 1813 states and 2717 transitions. [2024-11-28 02:47:08,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:47:08,512 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 02:47:08,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:08,534 INFO L225 Difference]: With dead ends: 1813 [2024-11-28 02:47:08,534 INFO L226 Difference]: Without dead ends: 1811 [2024-11-28 02:47:08,537 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 02:47:08,539 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1495 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:47:08,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:47:08,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-11-28 02:47:08,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1809. [2024-11-28 02:47:08,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1124 states have (on average 1.2491103202846976) internal successors, (1404), 1181 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 02:47:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2714 transitions. [2024-11-28 02:47:08,977 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2714 transitions. Word has length 920 [2024-11-28 02:47:08,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:08,980 INFO L471 AbstractCegarLoop]: Abstraction has 1809 states and 2714 transitions. [2024-11-28 02:47:08,981 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 02:47:08,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2714 transitions. [2024-11-28 02:47:09,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 927 [2024-11-28 02:47:09,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:09,003 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 02:47:09,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:47:09,004 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:09,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:09,005 INFO L85 PathProgramCache]: Analyzing trace with hash 24722262, now seen corresponding path program 1 times [2024-11-28 02:47:09,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:09,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739282069] [2024-11-28 02:47:09,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:09,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:13,348 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 02:47:13,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:13,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739282069] [2024-11-28 02:47:13,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739282069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:13,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:47:13,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:47:13,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118607407] [2024-11-28 02:47:13,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:13,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:47:13,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:13,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:47:13,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:47:13,352 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 02:47:14,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:14,156 INFO L93 Difference]: Finished difference Result 1817 states and 2720 transitions. [2024-11-28 02:47:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:47:14,157 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 02:47:14,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:14,176 INFO L225 Difference]: With dead ends: 1817 [2024-11-28 02:47:14,176 INFO L226 Difference]: Without dead ends: 1815 [2024-11-28 02:47:14,178 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 02:47:14,180 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1493 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:47:14,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:47:14,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2024-11-28 02:47:14,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1813. [2024-11-28 02:47:14,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1127 states have (on average 1.2484472049689441) internal successors, (1407), 1184 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 02:47:14,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2717 transitions. [2024-11-28 02:47:14,625 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2717 transitions. Word has length 926 [2024-11-28 02:47:14,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:14,630 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2717 transitions. [2024-11-28 02:47:14,630 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 02:47:14,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2717 transitions. [2024-11-28 02:47:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 933 [2024-11-28 02:47:14,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:14,650 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 02:47:14,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:47:14,651 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:14,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:14,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1477367377, now seen corresponding path program 1 times [2024-11-28 02:47:14,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:14,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497031395] [2024-11-28 02:47:14,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:14,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:19,243 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 02:47:19,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:19,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497031395] [2024-11-28 02:47:19,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497031395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:19,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:47:19,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:47:19,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733396594] [2024-11-28 02:47:19,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:19,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:47:19,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:19,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:47:19,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:47:19,247 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 02:47:20,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:20,044 INFO L93 Difference]: Finished difference Result 1821 states and 2723 transitions. [2024-11-28 02:47:20,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:47:20,044 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 02:47:20,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:20,063 INFO L225 Difference]: With dead ends: 1821 [2024-11-28 02:47:20,064 INFO L226 Difference]: Without dead ends: 1819 [2024-11-28 02:47:20,066 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 02:47:20,067 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1491 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:47:20,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:47:20,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2024-11-28 02:47:20,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1817. [2024-11-28 02:47:20,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1130 states have (on average 1.247787610619469) internal successors, (1410), 1187 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 02:47:20,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 2720 transitions. [2024-11-28 02:47:20,586 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 2720 transitions. Word has length 932 [2024-11-28 02:47:20,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:20,588 INFO L471 AbstractCegarLoop]: Abstraction has 1817 states and 2720 transitions. [2024-11-28 02:47:20,588 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 02:47:20,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 2720 transitions. [2024-11-28 02:47:20,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2024-11-28 02:47:20,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:20,608 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 02:47:20,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:47:20,609 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:20,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:20,610 INFO L85 PathProgramCache]: Analyzing trace with hash 197906954, now seen corresponding path program 1 times [2024-11-28 02:47:20,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:20,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608777066] [2024-11-28 02:47:20,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:20,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:25,092 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 02:47:25,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:25,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608777066] [2024-11-28 02:47:25,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608777066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:25,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:47:25,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:47:25,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335466091] [2024-11-28 02:47:25,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:25,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:47:25,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:25,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:47:25,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:47:25,098 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 02:47:26,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:26,148 INFO L93 Difference]: Finished difference Result 1825 states and 2726 transitions. [2024-11-28 02:47:26,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:47:26,149 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 02:47:26,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:26,171 INFO L225 Difference]: With dead ends: 1825 [2024-11-28 02:47:26,171 INFO L226 Difference]: Without dead ends: 1823 [2024-11-28 02:47:26,174 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 02:47:26,175 INFO L435 NwaCegarLoop]: 1932 mSDtfsCounter, 1489 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:47:26,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 8378 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:47:26,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2024-11-28 02:47:26,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1821. [2024-11-28 02:47:26,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1133 states have (on average 1.2471315092674315) internal successors, (1413), 1190 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 02:47:26,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2723 transitions. [2024-11-28 02:47:26,850 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2723 transitions. Word has length 938 [2024-11-28 02:47:26,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:26,851 INFO L471 AbstractCegarLoop]: Abstraction has 1821 states and 2723 transitions. [2024-11-28 02:47:26,852 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 02:47:26,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2723 transitions. [2024-11-28 02:47:26,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2024-11-28 02:47:26,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:26,873 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 02:47:26,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:47:26,873 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:26,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:26,875 INFO L85 PathProgramCache]: Analyzing trace with hash 133858886, now seen corresponding path program 1 times [2024-11-28 02:47:26,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:26,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012000027] [2024-11-28 02:47:26,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:26,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:30,306 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 02:47:30,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:30,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012000027] [2024-11-28 02:47:30,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012000027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:30,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:47:30,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:47:30,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109662484] [2024-11-28 02:47:30,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:30,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:47:30,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:30,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:47:30,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:47:30,310 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 02:47:31,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:31,158 INFO L93 Difference]: Finished difference Result 3922 states and 6008 transitions. [2024-11-28 02:47:31,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:47:31,159 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 02:47:31,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:31,196 INFO L225 Difference]: With dead ends: 3922 [2024-11-28 02:47:31,197 INFO L226 Difference]: Without dead ends: 2888 [2024-11-28 02:47:31,211 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 02:47:31,212 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:47:31,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1907 Valid, 6705 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:47:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2024-11-28 02:47:31,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2723. [2024-11-28 02:47:31,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 1674 states have (on average 1.2395459976105137) internal successors, (2075), 1783 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 02:47:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 4148 transitions. [2024-11-28 02:47:31,882 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 4148 transitions. Word has length 977 [2024-11-28 02:47:31,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:31,883 INFO L471 AbstractCegarLoop]: Abstraction has 2723 states and 4148 transitions. [2024-11-28 02:47:31,883 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 02:47:31,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 4148 transitions. [2024-11-28 02:47:31,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 973 [2024-11-28 02:47:31,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:31,916 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 02:47:31,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:47:31,916 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:31,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:31,917 INFO L85 PathProgramCache]: Analyzing trace with hash -244479811, now seen corresponding path program 1 times [2024-11-28 02:47:31,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:31,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829637458] [2024-11-28 02:47:31,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:31,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:34,192 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 02:47:34,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:34,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829637458] [2024-11-28 02:47:34,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829637458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:34,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:47:34,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:47:34,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733184752] [2024-11-28 02:47:34,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:34,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:47:34,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:34,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:47:34,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:47:34,197 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 02:47:35,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:35,099 INFO L93 Difference]: Finished difference Result 5514 states and 8617 transitions. [2024-11-28 02:47:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:47:35,100 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 02:47:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:35,145 INFO L225 Difference]: With dead ends: 5514 [2024-11-28 02:47:35,146 INFO L226 Difference]: Without dead ends: 4596 [2024-11-28 02:47:35,163 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 02:47:35,164 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 02:47:35,164 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 02:47:35,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2024-11-28 02:47:35,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4432. [2024-11-28 02:47:35,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 2695 states have (on average 1.2315398886827458) internal successors, (3319), 2905 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 02:47:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 6808 transitions. [2024-11-28 02:47:35,982 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 6808 transitions. Word has length 972 [2024-11-28 02:47:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:35,983 INFO L471 AbstractCegarLoop]: Abstraction has 4432 states and 6808 transitions. [2024-11-28 02:47:35,983 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 02:47:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 6808 transitions. [2024-11-28 02:47:36,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2024-11-28 02:47:36,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:36,034 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 02:47:36,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:47:36,034 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:36,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:36,035 INFO L85 PathProgramCache]: Analyzing trace with hash -779402813, now seen corresponding path program 1 times [2024-11-28 02:47:36,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:36,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425961944] [2024-11-28 02:47:36,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:36,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:37,779 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 02:47:37,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:37,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425961944] [2024-11-28 02:47:37,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425961944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:37,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:47:37,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:47:37,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604277260] [2024-11-28 02:47:37,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:37,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:47:37,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:37,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:47:37,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:47:37,782 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 02:47:39,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:39,424 INFO L93 Difference]: Finished difference Result 8198 states and 12726 transitions. [2024-11-28 02:47:39,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:47:39,426 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 02:47:39,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:39,476 INFO L225 Difference]: With dead ends: 8198 [2024-11-28 02:47:39,476 INFO L226 Difference]: Without dead ends: 4616 [2024-11-28 02:47:39,528 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 02:47:39,529 INFO L435 NwaCegarLoop]: 2050 mSDtfsCounter, 1187 mSDsluCounter, 3294 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:47:39,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 5344 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 02:47:39,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4616 states. [2024-11-28 02:47:40,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4616 to 4614. [2024-11-28 02:47:40,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 2821 states have (on average 1.2350230414746544) internal successors, (3484), 3031 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 02:47:40,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 7060 transitions. [2024-11-28 02:47:40,325 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 7060 transitions. Word has length 977 [2024-11-28 02:47:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:40,326 INFO L471 AbstractCegarLoop]: Abstraction has 4614 states and 7060 transitions. [2024-11-28 02:47:40,326 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 02:47:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 7060 transitions. [2024-11-28 02:47:40,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2024-11-28 02:47:40,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:40,398 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 02:47:40,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:47:40,398 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:40,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:40,401 INFO L85 PathProgramCache]: Analyzing trace with hash 284990601, now seen corresponding path program 1 times [2024-11-28 02:47:40,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:40,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231627506] [2024-11-28 02:47:40,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:40,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:42,472 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 02:47:42,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231627506] [2024-11-28 02:47:42,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231627506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:47:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543168802] [2024-11-28 02:47:42,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:42,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:47:42,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:47:42,477 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:47:42,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:47:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:44,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 3765 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:47:44,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:47:44,963 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 02:47:44,963 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:47:44,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543168802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:44,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:47:44,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-28 02:47:44,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355145493] [2024-11-28 02:47:44,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:44,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:47:44,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:44,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:47:44,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:47:44,967 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 02:47:49,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:49,635 INFO L93 Difference]: Finished difference Result 8603 states and 13341 transitions. [2024-11-28 02:47:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:47:49,636 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 02:47:49,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:49,690 INFO L225 Difference]: With dead ends: 8603 [2024-11-28 02:47:49,690 INFO L226 Difference]: Without dead ends: 4714 [2024-11-28 02:47:49,743 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 02:47:49,744 INFO L435 NwaCegarLoop]: 2657 mSDtfsCounter, 1870 mSDsluCounter, 3472 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s 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, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:47:49,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 6129 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 02:47:49,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4714 states. [2024-11-28 02:47:50,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4714 to 4549. [2024-11-28 02:47:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4549 states, 2777 states have (on average 1.2286640259272597) internal successors, (3412), 2986 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 02:47:50,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4549 states to 4549 states and 6896 transitions. [2024-11-28 02:47:50,507 INFO L78 Accepts]: Start accepts. Automaton has 4549 states and 6896 transitions. Word has length 982 [2024-11-28 02:47:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:50,508 INFO L471 AbstractCegarLoop]: Abstraction has 4549 states and 6896 transitions. [2024-11-28 02:47:50,509 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 02:47:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4549 states and 6896 transitions. [2024-11-28 02:47:50,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2024-11-28 02:47:50,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:50,568 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 02:47:50,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:47:50,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 02:47:50,769 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:50,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:50,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1139388530, now seen corresponding path program 1 times [2024-11-28 02:47:50,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:50,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499965311] [2024-11-28 02:47:50,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:50,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:52,365 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 02:47:52,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:52,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499965311] [2024-11-28 02:47:52,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499965311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:52,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:47:52,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:47:52,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585107081] [2024-11-28 02:47:52,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:52,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:47:52,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:52,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:47:52,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:47:52,370 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 02:47:52,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:52,848 INFO L93 Difference]: Finished difference Result 7928 states and 12389 transitions. [2024-11-28 02:47:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:47:52,849 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 02:47:52,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:52,895 INFO L225 Difference]: With dead ends: 7928 [2024-11-28 02:47:52,895 INFO L226 Difference]: Without dead ends: 4376 [2024-11-28 02:47:52,945 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 02:47:52,946 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 02:47:52,946 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 02:47:52,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4376 states. [2024-11-28 02:47:53,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4376 to 4376. [2024-11-28 02:47:53,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 2650 states have (on average 1.2271698113207548) internal successors, (3252), 2858 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 02:47:53,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 6607 transitions. [2024-11-28 02:47:53,672 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 6607 transitions. Word has length 982 [2024-11-28 02:47:53,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:53,673 INFO L471 AbstractCegarLoop]: Abstraction has 4376 states and 6607 transitions. [2024-11-28 02:47:53,673 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 02:47:53,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 6607 transitions. [2024-11-28 02:47:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2024-11-28 02:47:53,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:53,726 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 02:47:53,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:47:53,727 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:53,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:53,728 INFO L85 PathProgramCache]: Analyzing trace with hash -567295153, now seen corresponding path program 1 times [2024-11-28 02:47:53,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:53,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709921268] [2024-11-28 02:47:53,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:53,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:55,657 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 02:47:55,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:55,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709921268] [2024-11-28 02:47:55,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709921268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:47:55,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:47:55,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:47:55,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026322226] [2024-11-28 02:47:55,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:47:55,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:47:55,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:47:55,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:47:55,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:47:55,661 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 02:47:56,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:47:56,009 INFO L93 Difference]: Finished difference Result 7874 states and 12037 transitions. [2024-11-28 02:47:56,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:47:56,010 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 02:47:56,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:47:56,050 INFO L225 Difference]: With dead ends: 7874 [2024-11-28 02:47:56,050 INFO L226 Difference]: Without dead ends: 4536 [2024-11-28 02:47:56,082 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 02:47:56,083 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 02:47:56,083 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 02:47:56,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4536 states. [2024-11-28 02:47:56,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4536 to 4535. [2024-11-28 02:47:56,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4535 states, 2760 states have (on average 1.2307971014492753) internal successors, (3397), 2969 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 02:47:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 4535 states and 6825 transitions. [2024-11-28 02:47:56,718 INFO L78 Accepts]: Start accepts. Automaton has 4535 states and 6825 transitions. Word has length 983 [2024-11-28 02:47:56,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:47:56,719 INFO L471 AbstractCegarLoop]: Abstraction has 4535 states and 6825 transitions. [2024-11-28 02:47:56,719 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 02:47:56,719 INFO L276 IsEmpty]: Start isEmpty. Operand 4535 states and 6825 transitions. [2024-11-28 02:47:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2024-11-28 02:47:56,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:47:56,762 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 02:47:56,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:47:56,762 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:47:56,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:47:56,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1185733335, now seen corresponding path program 1 times [2024-11-28 02:47:56,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:47:56,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774017779] [2024-11-28 02:47:56,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:56,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:47:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:47:59,213 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 02:47:59,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:47:59,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774017779] [2024-11-28 02:47:59,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774017779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:47:59,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267103739] [2024-11-28 02:47:59,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:47:59,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:47:59,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:47:59,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:47:59,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:48:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:48:01,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 3751 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:48:01,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:48:01,833 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 02:48:01,833 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:48:01,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267103739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:48:01,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:48:01,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-28 02:48:01,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961425061] [2024-11-28 02:48:01,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:48:01,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:48:01,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:48:01,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:48:01,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:48:01,839 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 02:48:04,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:48:04,046 INFO L93 Difference]: Finished difference Result 6418 states and 9744 transitions. [2024-11-28 02:48:04,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:48:04,047 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 02:48:04,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:48:04,073 INFO L225 Difference]: With dead ends: 6418 [2024-11-28 02:48:04,074 INFO L226 Difference]: Without dead ends: 3042 [2024-11-28 02:48:04,106 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 02:48:04,107 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 02:48:04,108 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 02:48:04,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2024-11-28 02:48:04,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 3041. [2024-11-28 02:48:04,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 1891 states have (on average 1.2469592808038075) internal successors, (2358), 2001 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 02:48:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4516 transitions. [2024-11-28 02:48:04,800 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4516 transitions. Word has length 982 [2024-11-28 02:48:04,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:48:04,801 INFO L471 AbstractCegarLoop]: Abstraction has 3041 states and 4516 transitions. [2024-11-28 02:48:04,801 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 02:48:04,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4516 transitions. [2024-11-28 02:48:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2024-11-28 02:48:04,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:48:04,830 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 02:48:04,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:48:05,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:48:05,032 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:48:05,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:48:05,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1642349133, now seen corresponding path program 1 times [2024-11-28 02:48:05,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:48:05,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150056841] [2024-11-28 02:48:05,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:48:05,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:48:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:48:06,871 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 02:48:06,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:48:06,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150056841] [2024-11-28 02:48:06,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150056841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:48:06,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877661040] [2024-11-28 02:48:06,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:48:06,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:48:06,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:48:06,875 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:48:06,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:48:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:48:09,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 3789 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:48:09,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:48:09,637 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 02:48:09,637 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:48:09,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877661040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:48:09,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:48:09,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-28 02:48:09,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514396132] [2024-11-28 02:48:09,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:48:09,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:48:09,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:48:09,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:48:09,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:48:09,642 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 02:48:11,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:48:11,725 INFO L93 Difference]: Finished difference Result 4062 states and 6125 transitions. [2024-11-28 02:48:11,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:48:11,725 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 02:48:11,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:48:11,743 INFO L225 Difference]: With dead ends: 4062 [2024-11-28 02:48:11,744 INFO L226 Difference]: Without dead ends: 2059 [2024-11-28 02:48:11,761 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 02:48:11,762 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 02:48:11,762 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 02:48:11,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2024-11-28 02:48:12,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 1969. [2024-11-28 02:48:12,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1239 states have (on average 1.2453591606133978) internal successors, (1543), 1296 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 02:48:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2908 transitions. [2024-11-28 02:48:12,184 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2908 transitions. Word has length 992 [2024-11-28 02:48:12,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:48:12,185 INFO L471 AbstractCegarLoop]: Abstraction has 1969 states and 2908 transitions. [2024-11-28 02:48:12,186 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 02:48:12,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2908 transitions. [2024-11-28 02:48:12,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2024-11-28 02:48:12,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:48:12,206 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 02:48:12,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:48:12,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:48:12,407 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:48:12,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:48:12,409 INFO L85 PathProgramCache]: Analyzing trace with hash 881176595, now seen corresponding path program 1 times [2024-11-28 02:48:12,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:48:12,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575683789] [2024-11-28 02:48:12,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:48:12,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:48:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:48:44,874 INFO L134 CoverageAnalysis]: Checked inductivity of 25345 backedges. 27 proven. 639 refuted. 0 times theorem prover too weak. 24679 trivial. 0 not checked. [2024-11-28 02:48:44,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:48:44,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575683789] [2024-11-28 02:48:44,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575683789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:48:44,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163418426] [2024-11-28 02:48:44,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:48:44,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:48:44,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:48:44,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:48:44,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:48:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:48:49,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 3775 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 02:48:49,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:48:50,193 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 02:48:54,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-28 02:48:54,263 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 02:48:56,820 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 02:48:56,820 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:48:56,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163418426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:48:56,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:48:56,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [16] total 32 [2024-11-28 02:48:56,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328403181] [2024-11-28 02:48:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:48:56,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 02:48:56,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:48:56,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 02:48:56,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=864, Unknown=0, NotChecked=0, Total=992 [2024-11-28 02:48:56,825 INFO L87 Difference]: Start difference. First operand 1969 states and 2908 transitions. Second operand has 18 states, 17 states have (on average 23.58823529411765) internal successors, (401), 15 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 02:49:06,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:49:10,483 WARN L539 Checker$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 02:49:14,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:18,536 WARN L539 Checker$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 02:49:22,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:49:26,569 WARN L539 Checker$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 02:49:30,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:34,606 WARN L539 Checker$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 02:49:38,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:49:42,654 WARN L539 Checker$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 02:49:46,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:49:50,697 WARN L539 Checker$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 02:49:54,715 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 02:50:20,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:50:20,797 INFO L93 Difference]: Finished difference Result 5203 states and 7904 transitions. [2024-11-28 02:50:20,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-28 02:50:20,798 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 23.58823529411765) internal successors, (401), 15 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 02:50:20,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:50:20,832 INFO L225 Difference]: With dead ends: 5203 [2024-11-28 02:50:20,833 INFO L226 Difference]: Without dead ends: 4185 [2024-11-28 02:50:20,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 982 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1246 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=648, Invalid=3774, Unknown=0, NotChecked=0, Total=4422 [2024-11-28 02:50:20,848 INFO L435 NwaCegarLoop]: 1880 mSDtfsCounter, 2877 mSDsluCounter, 3827 mSDsCounter, 0 mSdLazyCounter, 11651 mSolverCounterSat, 2487 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3035 SdHoareTripleChecker+Valid, 5707 SdHoareTripleChecker+Invalid, 14151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2487 IncrementalHoareTripleChecker+Valid, 11651 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:50:20,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3035 Valid, 5707 Invalid, 14151 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2487 Valid, 11651 Invalid, 13 Unknown, 0 Unchecked, 79.9s Time] [2024-11-28 02:50:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2024-11-28 02:50:22,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 3945. [2024-11-28 02:50:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 2537 states have (on average 1.2175798186834845) internal successors, (3089), 2679 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 02:50:22,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5961 transitions. [2024-11-28 02:50:22,055 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5961 transitions. Word has length 992 [2024-11-28 02:50:22,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:50:22,056 INFO L471 AbstractCegarLoop]: Abstraction has 3945 states and 5961 transitions. [2024-11-28 02:50:22,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 23.58823529411765) internal successors, (401), 15 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 02:50:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5961 transitions. [2024-11-28 02:50:22,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2024-11-28 02:50:22,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:50:22,099 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 02:50:22,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:50:22,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:50:22,300 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:50:22,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:22,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1819627437, now seen corresponding path program 1 times [2024-11-28 02:50:22,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:50:22,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111868279] [2024-11-28 02:50:22,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:22,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:50:27,077 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 02:50:27,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:50:27,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111868279] [2024-11-28 02:50:27,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111868279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:50:27,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:50:27,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:50:27,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989624760] [2024-11-28 02:50:27,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:50:27,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:50:27,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:50:27,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:50:27,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:50:27,081 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 02:50:38,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:50:38,040 INFO L93 Difference]: Finished difference Result 5235 states and 7784 transitions. [2024-11-28 02:50:38,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:50:38,044 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 02:50:38,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:50:38,081 INFO L225 Difference]: With dead ends: 5235 [2024-11-28 02:50:38,081 INFO L226 Difference]: Without dead ends: 5233 [2024-11-28 02:50:38,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:50:38,088 INFO L435 NwaCegarLoop]: 1296 mSDtfsCounter, 2875 mSDsluCounter, 4909 mSDsCounter, 0 mSdLazyCounter, 3679 mSolverCounterSat, 2529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3260 SdHoareTripleChecker+Valid, 6205 SdHoareTripleChecker+Invalid, 6208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2529 IncrementalHoareTripleChecker+Valid, 3679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:50:38,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3260 Valid, 6205 Invalid, 6208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2529 Valid, 3679 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-28 02:50:38,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5233 states. [2024-11-28 02:50:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5233 to 5103. [2024-11-28 02:50:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 3280 states have (on average 1.2045731707317073) internal successors, (3951), 3437 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 02:50:39,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 7385 transitions. [2024-11-28 02:50:39,052 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 7385 transitions. Word has length 992 [2024-11-28 02:50:39,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:50:39,052 INFO L471 AbstractCegarLoop]: Abstraction has 5103 states and 7385 transitions. [2024-11-28 02:50:39,053 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 02:50:39,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 7385 transitions. [2024-11-28 02:50:39,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 945 [2024-11-28 02:50:39,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:50:39,075 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 02:50:39,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 02:50:39,075 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:50:39,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:39,076 INFO L85 PathProgramCache]: Analyzing trace with hash -58185727, now seen corresponding path program 1 times [2024-11-28 02:50:39,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:50:39,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531992453] [2024-11-28 02:50:39,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:39,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:50:42,380 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 02:50:42,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:50:42,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531992453] [2024-11-28 02:50:42,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531992453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:50:42,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:50:42,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:50:42,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311878892] [2024-11-28 02:50:42,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:50:42,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:50:42,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:50:42,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:50:42,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:50:42,384 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 02:50:43,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:50:43,685 INFO L93 Difference]: Finished difference Result 5111 states and 7391 transitions. [2024-11-28 02:50:43,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:50:43,685 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 02:50:43,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:50:43,714 INFO L225 Difference]: With dead ends: 5111 [2024-11-28 02:50:43,714 INFO L226 Difference]: Without dead ends: 5109 [2024-11-28 02:50:43,719 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 02:50:43,719 INFO L435 NwaCegarLoop]: 1898 mSDtfsCounter, 1472 mSDsluCounter, 6346 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 02:50:43,720 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 02:50:43,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5109 states. [2024-11-28 02:50:44,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5109 to 5107. [2024-11-28 02:50:44,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 3283 states have (on average 1.2043862321047822) internal successors, (3954), 3440 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 02:50:44,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 7388 transitions. [2024-11-28 02:50:44,843 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 7388 transitions. Word has length 944 [2024-11-28 02:50:44,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:50:44,844 INFO L471 AbstractCegarLoop]: Abstraction has 5107 states and 7388 transitions. [2024-11-28 02:50:44,844 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 02:50:44,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 7388 transitions. [2024-11-28 02:50:44,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 999 [2024-11-28 02:50:44,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:50:44,865 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 02:50:44,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 02:50:44,865 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:50:44,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:44,866 INFO L85 PathProgramCache]: Analyzing trace with hash -678719074, now seen corresponding path program 1 times [2024-11-28 02:50:44,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:50:44,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276419393] [2024-11-28 02:50:44,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:44,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:09,590 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 02:51:09,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:51:09,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276419393] [2024-11-28 02:51:09,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276419393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:51:09,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711022530] [2024-11-28 02:51:09,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:51:09,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:51:09,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:51:09,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:51:09,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf6f2b1d-28f6-4bd3-96d4-ad189eb83b44/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:51:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:16,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 3783 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-11-28 02:51:16,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:51:16,753 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 11 treesize of output 7 [2024-11-28 02:51:17,532 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 26 treesize of output 1 [2024-11-28 02:51:19,824 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 31 treesize of output 19 [2024-11-28 02:51:20,299 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 252 treesize of output 105 [2024-11-28 02:51:21,058 INFO L224 Elim1Store]: Index analysis took 680 ms [2024-11-28 02:51:21,332 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 186 treesize of output 66 [2024-11-28 02:52:04,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:52:04,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 179 treesize of output 95