./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c5cb1d1ec86f1df708ae47d652aad74925d4eb7bf3fc3a2c37d76896a5071e8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:05:12,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:05:12,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:05:12,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:05:12,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:05:12,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:05:12,521 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:05:12,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:05:12,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:05:12,522 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:05:12,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:05:12,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:05:12,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:05:12,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:05:12,524 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:05:12,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:05:12,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:05:12,525 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:05:12,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:05:12,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:05:12,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:05:12,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:05:12,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:05:12,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:05:12,527 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:05:12,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:05:12,527 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:05:12,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:05:12,527 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:05:12,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:05:12,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:05:12,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:05:12,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:05:12,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:05:12,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:05:12,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:05:12,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:05:12,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:05:12,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:05:12,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:05:12,529 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:05:12,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:05:12,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:05:12,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:05:12,530 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:05:12,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:05:12,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:05:12,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:05:12,531 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_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c5cb1d1ec86f1df708ae47d652aad74925d4eb7bf3fc3a2c37d76896a5071e8 [2024-11-24 01:05:12,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:05:12,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:05:12,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:05:12,972 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:05:12,972 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:05:12,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-pthread/cs_szymanski.i [2024-11-24 01:05:16,593 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/data/02a224881/2aee9814fc3940af888dd1f0a4662a84/FLAG0eff78690 [2024-11-24 01:05:17,046 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:05:17,050 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/sv-benchmarks/c/seq-pthread/cs_szymanski.i [2024-11-24 01:05:17,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/data/02a224881/2aee9814fc3940af888dd1f0a4662a84/FLAG0eff78690 [2024-11-24 01:05:17,112 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/data/02a224881/2aee9814fc3940af888dd1f0a4662a84 [2024-11-24 01:05:17,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:05:17,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:05:17,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:05:17,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:05:17,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:05:17,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:05:17" (1/1) ... [2024-11-24 01:05:17,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e0ab3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:17, skipping insertion in model container [2024-11-24 01:05:17,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:05:17" (1/1) ... [2024-11-24 01:05:17,200 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:05:17,735 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_ed508e9c-4b6d-4f48-871f-e3acd9206176/sv-benchmarks/c/seq-pthread/cs_szymanski.i[23606,23619] [2024-11-24 01:05:17,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:05:17,931 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:05:17,968 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_ed508e9c-4b6d-4f48-871f-e3acd9206176/sv-benchmarks/c/seq-pthread/cs_szymanski.i[23606,23619] [2024-11-24 01:05:18,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:05:18,084 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:05:18,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18 WrapperNode [2024-11-24 01:05:18,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:05:18,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:05:18,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:05:18,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:05:18,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,180 INFO L138 Inliner]: procedures = 145, calls = 298, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 407 [2024-11-24 01:05:18,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:05:18,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:05:18,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:05:18,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:05:18,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,246 INFO L175 MemorySlicer]: Split 144 memory accesses to 16 slices as follows [2, 13, 5, 8, 8, 8, 29, 21, 7, 7, 7, 0, 5, 5, 13, 6]. 20 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [2, 0, 0, 3, 3, 3, 9, 9, 3, 3, 3, 0, 0, 0, 0, 2]. The 36 writes are split as follows [0, 1, 1, 2, 2, 2, 11, 6, 2, 2, 2, 0, 1, 1, 1, 2]. [2024-11-24 01:05:18,246 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,306 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,311 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:05:18,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:05:18,354 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:05:18,355 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:05:18,356 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (1/1) ... [2024-11-24 01:05:18,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:05:18,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:18,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:05:18,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:05:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:05:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:05:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:05:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:05:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:05:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:05:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:05:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 01:05:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 01:05:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 01:05:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 01:05:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-24 01:05:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-24 01:05:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-24 01:05:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-24 01:05:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-24 01:05:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:05:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:05:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:05:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:05:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:05:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:05:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:05:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 01:05:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 01:05:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 01:05:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 01:05:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:05:18,448 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:05:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-24 01:05:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-11-24 01:05:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-11-24 01:05:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:05:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:05:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:05:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:05:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:05:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:05:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 01:05:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 01:05:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 01:05:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 01:05:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 01:05:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-24 01:05:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-24 01:05:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-24 01:05:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-24 01:05:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-24 01:05:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-11-24 01:05:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-11-24 01:05:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-24 01:05:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-24 01:05:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:05:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 01:05:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 01:05:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-24 01:05:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-24 01:05:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-11-24 01:05:18,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-11-24 01:05:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:05:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:05:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:05:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:05:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:05:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:05:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:05:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 01:05:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 01:05:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 01:05:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 01:05:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 01:05:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 01:05:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-24 01:05:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-24 01:05:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-24 01:05:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:05:18,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:05:18,846 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:05:18,848 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:05:23,683 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-24 01:05:23,684 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:05:23,706 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:05:23,706 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:05:23,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:05:23 BoogieIcfgContainer [2024-11-24 01:05:23,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:05:23,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:05:23,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:05:23,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:05:23,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:05:17" (1/3) ... [2024-11-24 01:05:23,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4861b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:05:23, skipping insertion in model container [2024-11-24 01:05:23,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:18" (2/3) ... [2024-11-24 01:05:23,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4861b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:05:23, skipping insertion in model container [2024-11-24 01:05:23,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:05:23" (3/3) ... [2024-11-24 01:05:23,722 INFO L128 eAbstractionObserver]: Analyzing ICFG cs_szymanski.i [2024-11-24 01:05:23,742 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:05:23,743 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cs_szymanski.i that has 6 procedures, 110 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-24 01:05:23,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:05:23,844 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;@71a4e5fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:05:23,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:05:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 71 states have (on average 1.323943661971831) internal successors, (94), 72 states have internal predecessors, (94), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 01:05:23,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 01:05:23,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:23,866 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:23,866 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:23,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:23,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2085051361, now seen corresponding path program 1 times [2024-11-24 01:05:23,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:23,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125783993] [2024-11-24 01:05:23,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:23,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:25,018 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 01:05:25,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:25,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125783993] [2024-11-24 01:05:25,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125783993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:05:25,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:05:25,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:05:25,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41184394] [2024-11-24 01:05:25,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:05:25,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:05:25,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:25,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:05:25,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:05:25,070 INFO L87 Difference]: Start difference. First operand has 110 states, 71 states have (on average 1.323943661971831) internal successors, (94), 72 states have internal predecessors, (94), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 01:05:25,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:25,206 INFO L93 Difference]: Finished difference Result 223 states and 353 transitions. [2024-11-24 01:05:25,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:05:25,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 120 [2024-11-24 01:05:25,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:25,224 INFO L225 Difference]: With dead ends: 223 [2024-11-24 01:05:25,225 INFO L226 Difference]: Without dead ends: 111 [2024-11-24 01:05:25,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:05:25,236 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 5 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:25,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:05:25,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-24 01:05:25,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2024-11-24 01:05:25,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 69 states have internal predecessors, (87), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 01:05:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 151 transitions. [2024-11-24 01:05:25,318 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 151 transitions. Word has length 120 [2024-11-24 01:05:25,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:25,320 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 151 transitions. [2024-11-24 01:05:25,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 01:05:25,320 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 151 transitions. [2024-11-24 01:05:25,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-24 01:05:25,333 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:25,333 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:25,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:05:25,334 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:25,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:25,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1288498745, now seen corresponding path program 1 times [2024-11-24 01:05:25,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:25,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257095942] [2024-11-24 01:05:25,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:25,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 01:05:25,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:25,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257095942] [2024-11-24 01:05:25,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257095942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:05:25,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:05:25,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:05:25,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836006902] [2024-11-24 01:05:25,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:05:25,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:05:25,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:25,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:05:25,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:05:25,947 INFO L87 Difference]: Start difference. First operand 107 states and 151 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 01:05:26,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:26,007 INFO L93 Difference]: Finished difference Result 213 states and 302 transitions. [2024-11-24 01:05:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:05:26,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-11-24 01:05:26,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:26,010 INFO L225 Difference]: With dead ends: 213 [2024-11-24 01:05:26,010 INFO L226 Difference]: Without dead ends: 109 [2024-11-24 01:05:26,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:05:26,013 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 1 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:26,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 293 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:05:26,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-24 01:05:26,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-11-24 01:05:26,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 70 states have internal predecessors, (88), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 01:05:26,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 152 transitions. [2024-11-24 01:05:26,032 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 152 transitions. Word has length 124 [2024-11-24 01:05:26,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:26,032 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 152 transitions. [2024-11-24 01:05:26,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 01:05:26,033 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 152 transitions. [2024-11-24 01:05:26,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-24 01:05:26,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:26,036 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:26,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:05:26,036 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:26,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash -915350389, now seen corresponding path program 1 times [2024-11-24 01:05:26,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:26,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388940895] [2024-11-24 01:05:26,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:26,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 01:05:26,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:26,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388940895] [2024-11-24 01:05:26,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388940895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:26,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227936963] [2024-11-24 01:05:26,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:26,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:26,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:26,628 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:26,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:05:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:27,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:05:27,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:27,506 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 01:05:27,509 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 01:05:27,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227936963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:05:27,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:05:27,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-24 01:05:27,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638367103] [2024-11-24 01:05:27,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:27,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:05:27,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:27,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:05:27,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:05:27,799 INFO L87 Difference]: Start difference. First operand 108 states and 152 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-24 01:05:27,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:27,901 INFO L93 Difference]: Finished difference Result 217 states and 307 transitions. [2024-11-24 01:05:27,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:05:27,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 126 [2024-11-24 01:05:27,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:27,904 INFO L225 Difference]: With dead ends: 217 [2024-11-24 01:05:27,904 INFO L226 Difference]: Without dead ends: 112 [2024-11-24 01:05:27,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:05:27,906 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 1 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:27,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 293 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:05:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-24 01:05:27,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-24 01:05:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 74 states have internal predecessors, (92), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 01:05:27,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 156 transitions. [2024-11-24 01:05:27,923 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 156 transitions. Word has length 126 [2024-11-24 01:05:27,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:27,923 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 156 transitions. [2024-11-24 01:05:27,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-24 01:05:27,924 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 156 transitions. [2024-11-24 01:05:27,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-24 01:05:27,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:27,926 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 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] [2024-11-24 01:05:27,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:05:28,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:28,127 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:28,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:28,128 INFO L85 PathProgramCache]: Analyzing trace with hash 544853779, now seen corresponding path program 2 times [2024-11-24 01:05:28,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:28,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742431817] [2024-11-24 01:05:28,129 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:05:28,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:28,323 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:05:28,323 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:05:28,647 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2024-11-24 01:05:28,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:28,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742431817] [2024-11-24 01:05:28,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742431817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:05:28,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:05:28,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:05:28,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233009045] [2024-11-24 01:05:28,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:05:28,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:05:28,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:28,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:05:28,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:05:28,651 INFO L87 Difference]: Start difference. First operand 112 states and 156 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 01:05:28,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:28,734 INFO L93 Difference]: Finished difference Result 208 states and 297 transitions. [2024-11-24 01:05:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:05:28,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-11-24 01:05:28,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:28,743 INFO L225 Difference]: With dead ends: 208 [2024-11-24 01:05:28,743 INFO L226 Difference]: Without dead ends: 166 [2024-11-24 01:05:28,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:05:28,748 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 95 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:28,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 462 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:05:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-24 01:05:28,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-24 01:05:28,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 110 states have internal predecessors, (141), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (49), 45 states have call predecessors, (49), 45 states have call successors, (49) [2024-11-24 01:05:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 235 transitions. [2024-11-24 01:05:28,798 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 235 transitions. Word has length 130 [2024-11-24 01:05:28,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:28,798 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 235 transitions. [2024-11-24 01:05:28,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 01:05:28,802 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 235 transitions. [2024-11-24 01:05:28,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-24 01:05:28,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:28,810 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-24 01:05:28,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:05:28,811 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:28,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:28,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1599276725, now seen corresponding path program 1 times [2024-11-24 01:05:28,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:28,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493957108] [2024-11-24 01:05:28,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:28,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:29,413 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2024-11-24 01:05:29,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:29,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493957108] [2024-11-24 01:05:29,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493957108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:29,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892633151] [2024-11-24 01:05:29,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:29,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:29,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:29,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:29,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:05:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:30,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:05:30,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:30,346 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2024-11-24 01:05:30,346 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2024-11-24 01:05:30,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892633151] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:05:30,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:05:30,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-24 01:05:30,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132041218] [2024-11-24 01:05:30,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:30,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:05:30,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:30,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:05:30,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:05:30,815 INFO L87 Difference]: Start difference. First operand 166 states and 235 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-24 01:05:30,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:30,932 INFO L93 Difference]: Finished difference Result 339 states and 479 transitions. [2024-11-24 01:05:30,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:05:30,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 199 [2024-11-24 01:05:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:30,936 INFO L225 Difference]: With dead ends: 339 [2024-11-24 01:05:30,936 INFO L226 Difference]: Without dead ends: 186 [2024-11-24 01:05:30,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 395 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:05:30,941 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 5 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:30,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 434 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:05:30,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-24 01:05:30,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2024-11-24 01:05:30,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 130 states have internal predecessors, (163), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (49), 45 states have call predecessors, (49), 45 states have call successors, (49) [2024-11-24 01:05:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 257 transitions. [2024-11-24 01:05:30,982 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 257 transitions. Word has length 199 [2024-11-24 01:05:30,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:30,983 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 257 transitions. [2024-11-24 01:05:30,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-24 01:05:30,983 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 257 transitions. [2024-11-24 01:05:30,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-24 01:05:30,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:30,989 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-24 01:05:31,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:05:31,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:31,193 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:31,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:31,194 INFO L85 PathProgramCache]: Analyzing trace with hash -110797303, now seen corresponding path program 2 times [2024-11-24 01:05:31,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:31,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71674106] [2024-11-24 01:05:31,194 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:05:31,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:31,395 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:05:31,395 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:05:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2024-11-24 01:05:31,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:31,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71674106] [2024-11-24 01:05:31,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71674106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:05:31,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:05:31,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:05:31,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925446545] [2024-11-24 01:05:31,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:05:31,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:05:31,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:31,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:05:31,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:05:31,763 INFO L87 Difference]: Start difference. First operand 186 states and 257 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:05:32,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:05:33,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:33,408 INFO L93 Difference]: Finished difference Result 464 states and 659 transitions. [2024-11-24 01:05:33,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:05:33,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 219 [2024-11-24 01:05:33,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:33,414 INFO L225 Difference]: With dead ends: 464 [2024-11-24 01:05:33,414 INFO L226 Difference]: Without dead ends: 328 [2024-11-24 01:05:33,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:05:33,416 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 130 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:33,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 609 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 01:05:33,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-24 01:05:33,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 324. [2024-11-24 01:05:33,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 216 states have (on average 1.2638888888888888) internal successors, (273), 216 states have internal predecessors, (273), 87 states have call successors, (87), 20 states have call predecessors, (87), 20 states have return successors, (102), 87 states have call predecessors, (102), 87 states have call successors, (102) [2024-11-24 01:05:33,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 462 transitions. [2024-11-24 01:05:33,486 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 462 transitions. Word has length 219 [2024-11-24 01:05:33,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:33,486 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 462 transitions. [2024-11-24 01:05:33,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:05:33,487 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 462 transitions. [2024-11-24 01:05:33,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-24 01:05:33,496 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:33,496 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-24 01:05:33,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:05:33,500 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:33,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:33,501 INFO L85 PathProgramCache]: Analyzing trace with hash -615249997, now seen corresponding path program 1 times [2024-11-24 01:05:33,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:33,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931184074] [2024-11-24 01:05:33,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:33,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2024-11-24 01:05:34,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:34,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931184074] [2024-11-24 01:05:34,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931184074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:05:34,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:05:34,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:05:34,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627641247] [2024-11-24 01:05:34,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:05:34,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:05:34,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:34,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:05:34,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:05:34,770 INFO L87 Difference]: Start difference. First operand 324 states and 462 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:05:38,795 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 [] [2024-11-24 01:05:39,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:39,708 INFO L93 Difference]: Finished difference Result 578 states and 817 transitions. [2024-11-24 01:05:39,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:05:39,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 219 [2024-11-24 01:05:39,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:39,717 INFO L225 Difference]: With dead ends: 578 [2024-11-24 01:05:39,717 INFO L226 Difference]: Without dead ends: 298 [2024-11-24 01:05:39,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:05:39,719 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 126 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:39,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 613 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-24 01:05:39,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-24 01:05:39,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 294. [2024-11-24 01:05:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 197 states have (on average 1.2233502538071066) internal successors, (241), 197 states have internal predecessors, (241), 78 states have call successors, (78), 18 states have call predecessors, (78), 18 states have return successors, (86), 78 states have call predecessors, (86), 78 states have call successors, (86) [2024-11-24 01:05:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 405 transitions. [2024-11-24 01:05:39,772 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 405 transitions. Word has length 219 [2024-11-24 01:05:39,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:39,773 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 405 transitions. [2024-11-24 01:05:39,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:05:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 405 transitions. [2024-11-24 01:05:39,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-24 01:05:39,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:39,780 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-24 01:05:39,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:05:39,781 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:39,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:39,781 INFO L85 PathProgramCache]: Analyzing trace with hash -265230947, now seen corresponding path program 1 times [2024-11-24 01:05:39,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:39,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372097379] [2024-11-24 01:05:39,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:39,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:40,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2024-11-24 01:05:40,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:40,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372097379] [2024-11-24 01:05:40,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372097379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:40,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717684864] [2024-11-24 01:05:40,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:40,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:40,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:40,853 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:40,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:05:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:41,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 1618 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:05:41,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 288 proven. 4 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-24 01:05:42,167 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2024-11-24 01:05:43,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717684864] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:05:43,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:05:43,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2024-11-24 01:05:43,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941515082] [2024-11-24 01:05:43,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:43,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:05:43,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:43,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:05:43,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:05:43,009 INFO L87 Difference]: Start difference. First operand 294 states and 405 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 9 states have call successors, (54), 5 states have call predecessors, (54), 6 states have return successors, (55), 7 states have call predecessors, (55), 9 states have call successors, (55) [2024-11-24 01:05:47,044 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 [] [2024-11-24 01:05:50,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:50,082 INFO L93 Difference]: Finished difference Result 578 states and 816 transitions. [2024-11-24 01:05:50,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:05:50,083 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 9 states have call successors, (54), 5 states have call predecessors, (54), 6 states have return successors, (55), 7 states have call predecessors, (55), 9 states have call successors, (55) Word has length 219 [2024-11-24 01:05:50,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:50,087 INFO L225 Difference]: With dead ends: 578 [2024-11-24 01:05:50,087 INFO L226 Difference]: Without dead ends: 324 [2024-11-24 01:05:50,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:05:50,090 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 182 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 113 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:50,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 585 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-24 01:05:50,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-24 01:05:50,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 321. [2024-11-24 01:05:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 219 states have (on average 1.2420091324200913) internal successors, (272), 221 states have internal predecessors, (272), 73 states have call successors, (73), 26 states have call predecessors, (73), 28 states have return successors, (93), 73 states have call predecessors, (93), 73 states have call successors, (93) [2024-11-24 01:05:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 438 transitions. [2024-11-24 01:05:50,140 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 438 transitions. Word has length 219 [2024-11-24 01:05:50,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:50,142 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 438 transitions. [2024-11-24 01:05:50,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 9 states have call successors, (54), 5 states have call predecessors, (54), 6 states have return successors, (55), 7 states have call predecessors, (55), 9 states have call successors, (55) [2024-11-24 01:05:50,142 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 438 transitions. [2024-11-24 01:05:50,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-24 01:05:50,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:50,150 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-24 01:05:50,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:05:50,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-24 01:05:50,354 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:50,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1420517507, now seen corresponding path program 1 times [2024-11-24 01:05:50,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:50,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790923094] [2024-11-24 01:05:50,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:50,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2024-11-24 01:05:54,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:54,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790923094] [2024-11-24 01:05:54,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790923094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:54,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354954794] [2024-11-24 01:05:54,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:54,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:54,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:54,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:54,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:05:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:55,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 1716 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 01:05:55,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:55,592 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 13 treesize of output 9 [2024-11-24 01:06:07,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:06:07,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:06:07,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2024-11-24 01:06:09,455 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-11-24 01:06:09,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-24 01:06:48,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 333 proven. 4 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2024-11-24 01:06:48,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:06:49,519 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 23 [2024-11-24 01:06:49,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 35 treesize of output 31 [2024-11-24 01:06:50,749 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 20 treesize of output 18 [2024-11-24 01:06:50,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 22 [2024-11-24 01:06:50,895 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 20 treesize of output 18 [2024-11-24 01:06:50,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 22 [2024-11-24 01:06:51,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2024-11-24 01:06:51,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354954794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:06:51,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:06:51,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 9] total 37 [2024-11-24 01:06:51,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675892074] [2024-11-24 01:06:51,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:06:51,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-24 01:06:51,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:51,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-24 01:06:51,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1191, Unknown=3, NotChecked=0, Total=1332 [2024-11-24 01:06:51,090 INFO L87 Difference]: Start difference. First operand 321 states and 438 transitions. Second operand has 37 states, 34 states have (on average 4.205882352941177) internal successors, (143), 34 states have internal predecessors, (143), 18 states have call successors, (64), 12 states have call predecessors, (64), 14 states have return successors, (64), 16 states have call predecessors, (64), 18 states have call successors, (64) [2024-11-24 01:06:52,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:56,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:00,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:04,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:08,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:09,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:13,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:17,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:19,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:23,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:27,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:32,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:36,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:07:40,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:43,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:47,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:51,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:55,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:05,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:05,836 INFO L93 Difference]: Finished difference Result 631 states and 910 transitions. [2024-11-24 01:08:05,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-24 01:08:05,837 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 34 states have (on average 4.205882352941177) internal successors, (143), 34 states have internal predecessors, (143), 18 states have call successors, (64), 12 states have call predecessors, (64), 14 states have return successors, (64), 16 states have call predecessors, (64), 18 states have call successors, (64) Word has length 219 [2024-11-24 01:08:05,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:05,842 INFO L225 Difference]: With dead ends: 631 [2024-11-24 01:08:05,842 INFO L226 Difference]: Without dead ends: 384 [2024-11-24 01:08:05,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 415 SyntacticMatches, 8 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 978 ImplicationChecksByTransitivity, 55.8s TimeCoverageRelationStatistics Valid=688, Invalid=3469, Unknown=3, NotChecked=0, Total=4160 [2024-11-24 01:08:05,846 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 724 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 749 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 3567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 749 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:05,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1608 Invalid, 3567 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [749 Valid, 2804 Invalid, 14 Unknown, 0 Unchecked, 71.8s Time] [2024-11-24 01:08:05,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-24 01:08:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 355. [2024-11-24 01:08:05,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 238 states have (on average 1.2352941176470589) internal successors, (294), 243 states have internal predecessors, (294), 83 states have call successors, (83), 26 states have call predecessors, (83), 33 states have return successors, (127), 85 states have call predecessors, (127), 83 states have call successors, (127) [2024-11-24 01:08:05,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 504 transitions. [2024-11-24 01:08:05,971 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 504 transitions. Word has length 219 [2024-11-24 01:08:05,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:05,972 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 504 transitions. [2024-11-24 01:08:05,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 34 states have (on average 4.205882352941177) internal successors, (143), 34 states have internal predecessors, (143), 18 states have call successors, (64), 12 states have call predecessors, (64), 14 states have return successors, (64), 16 states have call predecessors, (64), 18 states have call successors, (64) [2024-11-24 01:08:05,972 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 504 transitions. [2024-11-24 01:08:05,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-24 01:08:05,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:05,979 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 9, 9, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-24 01:08:05,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:08:06,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-24 01:08:06,183 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:06,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:06,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1152266675, now seen corresponding path program 1 times [2024-11-24 01:08:06,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:06,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450190851] [2024-11-24 01:08:06,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:06,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2024-11-24 01:08:06,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:06,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450190851] [2024-11-24 01:08:06,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450190851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:06,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:06,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:08:06,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337306499] [2024-11-24 01:08:06,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:06,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:08:06,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:06,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:08:06,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:08:06,718 INFO L87 Difference]: Start difference. First operand 355 states and 504 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-24 01:08:06,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:06,793 INFO L93 Difference]: Finished difference Result 626 states and 956 transitions. [2024-11-24 01:08:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:08:06,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 275 [2024-11-24 01:08:06,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:06,800 INFO L225 Difference]: With dead ends: 626 [2024-11-24 01:08:06,800 INFO L226 Difference]: Without dead ends: 359 [2024-11-24 01:08:06,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:08:06,804 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:06,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 290 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:08:06,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-24 01:08:06,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-24 01:08:06,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 242 states have (on average 1.2314049586776858) internal successors, (298), 247 states have internal predecessors, (298), 83 states have call successors, (83), 26 states have call predecessors, (83), 33 states have return successors, (127), 85 states have call predecessors, (127), 83 states have call successors, (127) [2024-11-24 01:08:06,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 508 transitions. [2024-11-24 01:08:06,896 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 508 transitions. Word has length 275 [2024-11-24 01:08:06,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:06,898 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 508 transitions. [2024-11-24 01:08:06,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-24 01:08:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 508 transitions. [2024-11-24 01:08:06,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-24 01:08:06,907 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:06,907 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 9, 9, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-24 01:08:06,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:08:06,908 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:06,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:06,909 INFO L85 PathProgramCache]: Analyzing trace with hash -788800177, now seen corresponding path program 1 times [2024-11-24 01:08:06,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:06,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267022345] [2024-11-24 01:08:06,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:06,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 1426 trivial. 0 not checked. [2024-11-24 01:08:10,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:10,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267022345] [2024-11-24 01:08:10,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267022345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:08:10,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498893315] [2024-11-24 01:08:10,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:10,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:08:10,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:08:10,089 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:08:10,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:08:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:11,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 2206 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-24 01:08:11,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:08:11,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:08:11,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:08:11,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2024-11-24 01:08:12,298 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 15 treesize of output 11 [2024-11-24 01:08:12,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:08:12,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-24 01:08:12,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:08:12,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 10 [2024-11-24 01:08:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 357 proven. 15 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2024-11-24 01:08:13,061 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:08:13,504 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 34 treesize of output 16 [2024-11-24 01:08:13,802 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 34 treesize of output 16 [2024-11-24 01:08:14,037 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 34 treesize of output 16 [2024-11-24 01:08:15,506 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 37 treesize of output 33 [2024-11-24 01:08:15,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 36 treesize of output 28 [2024-11-24 01:08:16,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 1423 trivial. 0 not checked. [2024-11-24 01:08:16,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498893315] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:08:16,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:08:16,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 13] total 31 [2024-11-24 01:08:16,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391134898] [2024-11-24 01:08:16,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:08:16,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 01:08:16,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:16,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 01:08:16,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=747, Unknown=0, NotChecked=0, Total=930 [2024-11-24 01:08:16,277 INFO L87 Difference]: Start difference. First operand 359 states and 508 transitions. Second operand has 31 states, 27 states have (on average 6.962962962962963) internal successors, (188), 31 states have internal predecessors, (188), 20 states have call successors, (75), 9 states have call predecessors, (75), 11 states have return successors, (76), 17 states have call predecessors, (76), 20 states have call successors, (76) [2024-11-24 01:08:21,285 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 [] [2024-11-24 01:08:25,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:29,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:33,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:37,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:41,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:45,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:49,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:53,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:57,378 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 [] [2024-11-24 01:09:01,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:01,013 INFO L93 Difference]: Finished difference Result 529 states and 749 transitions. [2024-11-24 01:09:01,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:09:01,014 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 6.962962962962963) internal successors, (188), 31 states have internal predecessors, (188), 20 states have call successors, (75), 9 states have call predecessors, (75), 11 states have return successors, (76), 17 states have call predecessors, (76), 20 states have call successors, (76) Word has length 275 [2024-11-24 01:09:01,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:01,019 INFO L225 Difference]: With dead ends: 529 [2024-11-24 01:09:01,019 INFO L226 Difference]: Without dead ends: 361 [2024-11-24 01:09:01,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=364, Invalid=1196, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 01:09:01,021 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 423 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 207 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:01,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1058 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1304 Invalid, 10 Unknown, 0 Unchecked, 44.1s Time] [2024-11-24 01:09:01,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-24 01:09:01,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 351. [2024-11-24 01:09:01,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 236 states have (on average 1.228813559322034) internal successors, (290), 240 states have internal predecessors, (290), 82 states have call successors, (82), 26 states have call predecessors, (82), 32 states have return successors, (124), 84 states have call predecessors, (124), 82 states have call successors, (124) [2024-11-24 01:09:01,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 496 transitions. [2024-11-24 01:09:01,092 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 496 transitions. Word has length 275 [2024-11-24 01:09:01,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:01,093 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 496 transitions. [2024-11-24 01:09:01,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 6.962962962962963) internal successors, (188), 31 states have internal predecessors, (188), 20 states have call successors, (75), 9 states have call predecessors, (75), 11 states have return successors, (76), 17 states have call predecessors, (76), 20 states have call successors, (76) [2024-11-24 01:09:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 496 transitions. [2024-11-24 01:09:01,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-24 01:09:01,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:01,100 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-24 01:09:01,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:09:01,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:09:01,301 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:01,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:01,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1312348410, now seen corresponding path program 1 times [2024-11-24 01:09:01,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:01,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376518646] [2024-11-24 01:09:01,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:01,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:05,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 1294 trivial. 0 not checked. [2024-11-24 01:09:05,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:05,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376518646] [2024-11-24 01:09:05,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376518646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:09:05,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97149760] [2024-11-24 01:09:05,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:05,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:09:05,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:09:05,269 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:09:05,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:09:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:06,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 01:09:06,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:09:07,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 1076 trivial. 0 not checked. [2024-11-24 01:09:07,711 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:09:07,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97149760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:07,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:09:07,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [19] total 29 [2024-11-24 01:09:07,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106989155] [2024-11-24 01:09:07,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:07,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:09:07,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:07,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:09:07,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=721, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:09:07,715 INFO L87 Difference]: Start difference. First operand 351 states and 496 transitions. Second operand has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 7 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2024-11-24 01:09:11,785 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 [] [2024-11-24 01:09:17,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:17,234 INFO L93 Difference]: Finished difference Result 1005 states and 1476 transitions. [2024-11-24 01:09:17,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-24 01:09:17,234 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 7 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) Word has length 254 [2024-11-24 01:09:17,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:17,244 INFO L225 Difference]: With dead ends: 1005 [2024-11-24 01:09:17,245 INFO L226 Difference]: Without dead ends: 716 [2024-11-24 01:09:17,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=325, Invalid=1931, Unknown=0, NotChecked=0, Total=2256 [2024-11-24 01:09:17,249 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 454 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 427 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:17,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 861 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 1494 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2024-11-24 01:09:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-24 01:09:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 682. [2024-11-24 01:09:17,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 446 states have (on average 1.1591928251121075) internal successors, (517), 442 states have internal predecessors, (517), 170 states have call successors, (170), 44 states have call predecessors, (170), 65 states have return successors, (285), 195 states have call predecessors, (285), 170 states have call successors, (285) [2024-11-24 01:09:17,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 972 transitions. [2024-11-24 01:09:17,421 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 972 transitions. Word has length 254 [2024-11-24 01:09:17,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:17,421 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 972 transitions. [2024-11-24 01:09:17,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 7 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2024-11-24 01:09:17,422 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 972 transitions. [2024-11-24 01:09:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-24 01:09:17,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:17,428 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-24 01:09:17,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:09:17,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 01:09:17,633 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:17,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:17,634 INFO L85 PathProgramCache]: Analyzing trace with hash -275197399, now seen corresponding path program 1 times [2024-11-24 01:09:17,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:17,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143942526] [2024-11-24 01:09:17,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:17,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:20,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 1299 trivial. 0 not checked. [2024-11-24 01:09:20,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:20,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143942526] [2024-11-24 01:09:20,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143942526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:09:20,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602130880] [2024-11-24 01:09:20,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:20,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:09:20,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:09:20,862 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:09:20,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed508e9c-4b6d-4f48-871f-e3acd9206176/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:09:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:24,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 2037 conjuncts, 244 conjuncts are in the unsatisfiable core [2024-11-24 01:09:25,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:09:26,824 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 15 treesize of output 1 [2024-11-24 01:09:27,078 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 15 treesize of output 1 [2024-11-24 01:09:27,259 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 15 treesize of output 1 [2024-11-24 01:09:27,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2024-11-24 01:09:27,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:09:27,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 25 [2024-11-24 01:09:29,273 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 13 treesize of output 9 [2024-11-24 01:09:29,865 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 25 treesize of output 21 [2024-11-24 01:09:30,749 INFO L349 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2024-11-24 01:09:30,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 62 treesize of output 80 [2024-11-24 01:09:31,339 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 46 treesize of output 34 [2024-11-24 01:09:31,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:09:31,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 40 [2024-11-24 01:09:31,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2024-11-24 01:09:33,370 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 [2024-11-24 01:09:34,127 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 17 treesize of output 13 [2024-11-24 01:09:37,279 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-24 01:09:37,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 26 [2024-11-24 01:09:37,349 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 18 treesize of output 16 [2024-11-24 01:09:38,198 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-24 01:09:38,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 29 [2024-11-24 01:09:38,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 5 [2024-11-24 01:09:38,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 61 treesize of output 56 [2024-11-24 01:09:38,991 INFO L349 Elim1Store]: treesize reduction 156, result has 20.0 percent of original size [2024-11-24 01:09:38,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 64 [2024-11-24 01:09:44,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:09:44,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 165 treesize of output 173 [2024-11-24 01:09:45,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 43 treesize of output 38 [2024-11-24 01:09:45,859 INFO L349 Elim1Store]: treesize reduction 108, result has 20.0 percent of original size [2024-11-24 01:09:45,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 52 [2024-11-24 01:10:00,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 104 [2024-11-24 01:10:00,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:10:00,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:10:00,916 INFO L349 Elim1Store]: treesize reduction 313, result has 30.0 percent of original size [2024-11-24 01:10:00,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 247 [2024-11-24 01:10:01,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 69 treesize of output 53 [2024-11-24 01:10:01,789 INFO L349 Elim1Store]: treesize reduction 136, result has 22.3 percent of original size [2024-11-24 01:10:01,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 65 [2024-11-24 01:10:32,753 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification that was a NOOP. DAG size: 238 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:10:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 457 proven. 236 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2024-11-24 01:10:35,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:10:43,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:10:43,257 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 330 treesize of output 290 [2024-11-24 01:10:43,309 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:10:43,321 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 275 treesize of output 251 [2024-11-24 01:10:50,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602130880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:10:50,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:10:50,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 65] total 74 [2024-11-24 01:10:50,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032131550] [2024-11-24 01:10:50,049 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:10:50,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-11-24 01:10:50,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:50,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-11-24 01:10:50,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=401, Invalid=6569, Unknown=2, NotChecked=0, Total=6972 [2024-11-24 01:10:50,060 INFO L87 Difference]: Start difference. First operand 682 states and 972 transitions. Second operand has 74 states, 67 states have (on average 2.671641791044776) internal successors, (179), 62 states have internal predecessors, (179), 26 states have call successors, (66), 19 states have call predecessors, (66), 23 states have return successors, (66), 23 states have call predecessors, (66), 26 states have call successors, (66) [2024-11-24 01:10:59,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:03,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:11:07,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:11:10,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:14,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:18,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:11:22,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:11:26,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:30,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:34,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:11:38,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:11:42,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:46,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:48,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:50,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:54,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:11:58,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:12:02,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:12:06,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:12:10,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:12:14,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:18,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:22,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:26,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:12:30,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:34,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:36,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:40,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:44,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:12:48,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:12:52,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:56,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:00,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:04,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:13:08,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:12,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:16,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:20,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:13:24,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:13:28,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:32,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:34,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:38,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:13:42,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:46,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:50,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:54,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:13:58,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:14:03,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:14:07,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:14:11,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:14:15,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:14:19,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:14:23,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:14:27,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:14:31,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:14:35,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:14:39,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:14:43,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:14:47,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:14:51,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:09,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:15:14,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:15:29,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:15:38,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:15:48,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:15:52,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:15:56,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:16:01,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:16:14,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:16:18,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:16:25,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:16:42,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:16:55,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:09,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:23,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:25,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:30,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:32,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:47,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:57,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:18:05,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:19:03,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:19:09,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:19:19,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]